hi everyone good evening welcome to the class hi everyone i hope that you can clearly see me and can hear me evening good evening dipanchu good evening purna good evening sneha good evening good evening how are you all good evening aditi i'm good how are you rashbi good evening hi tripty thank you for telling me tripty renuka we don't have an anti session today but it's a one shot prachi hi good evening good evening tripty nice i hope that all of you are fine right and just one minute i hope that you can clearly see me and can hear me hi ashraf nice aditi thank you so much hi priya good evening preethi narendra advair jai prakash the student show nice hello good evening hi anan chao welcome everyone yes uh yesterday we didn't finish that right uh but today we are just having one shot so the read by basically read line by line with the ncrt will not be doing in today's class right so of course as you can see from the topic we will be having a whole session one shot okay rashmi so today it's just one short video for all of us i know three or four yes poor now no we haven't done this one shot as of now i think we didn't have any one shot okay without taking any of your time everyone let's get started i want all of you to focus over here hi ashwarya yes so i want all of you to fully focus over here will not take much of your time right and we will be focusing to finish this chapter right so all focus now before we start of course you saw over there right in the video and of course that's all about the ante now we are talking about this interesting and super amazing exam which is akash national talent hunt exam now this exam will give you a chance to go to the nasa right and of course that's a really very interesting thing now apart from that of course there are a lot of other benefits we have cash awards you will be getting all india ranking and up to 100 scholarship and of course the online exam is there right an offline exam is also there please do participate apart from that now we we are targeting our midterms right and of course we have all of these classes now how many of you have joined the telegram group yes how many of you have joined the telegram group now once good evening good evening good very good poorna we all should participate right yes hi husna hi shivanj hi ruby jam hi deepanshu gautam parth awesome i can see a lot of you have joined so we are providing the chapter revision and pdfs also so we have all of the tissues pdf as of now all the tissues pdf are all there uh on the group so please now you can download those pdf we'll be focusing on the important concepts important questions that are really very important from the exam point of view then of course we have doubt sessions one short marathon like this and of course we have mock test so definitely subscribe to the channel and very apparently this for every week what will happen we have first thousand subscriber right who will be who can actually avail the mini learning program by using the code yt first so you will be able to have those amazing classes you can take a look at the classes that we have and of course it will be nice fun and i already talked about this join the group and let's get started meemur karda wish i can tell you this is not a place and i think that you know that we should not be asking about the salary and such public platform not a good thing let's not do that great everyone so are we clear okay give me a quick thumbs up everyone and then we'll start 5'4 i'll just need i think approximately 45 minutes of yours yes great oh very quickly a thumbs up everyone and then we will start right i can see must khan no issues meanwhile that's fine we uh yes it's okay let's not of course he must have asked you know out of curiosity let's not do anything right and he said sorry that's perfectly fine yes sharanjeet ajit rashmi di panchu gotham vivek very good let's get started everyone so that's a very interesting chapter that we have today you're right on time right pokemon nice okay gigi aj chandan sneha we don't have any homework question today we have already started the tissues chapter right we have finished uh plant issues and we have started with the animal tissue epithelial tissue is done and uh next week we will be covering up the other tissue so yeah stay tuned for that musk monday we'll have sorry tomorrow we'll have the life process one shot right great okay everyone on that note just need your time i won't fully focus of you and let's get started so when we talk about the fundamental unit of life it's a very interesting chapter talking about the cells right now of course one of the important thing that we will be asking in the questions and of course in n number of examination is that who discovered the cell and we have the answer robert brown is the one who actually discovered the cell in the year 1665 right he was the first one to observe the dead cells right he observed the dead cells now and he was the one who coined the term cell due to its appearance as of a prison like small small small right so that's why we got the name cell and he observed the dead cells whereas on the other side we have leuven hawk who actually discovered well lots of discovered who actually observed the first living cell right and of course he used the improved microscope so that's one thing we all are clear liben hawk we know that discovered the first uh sorry observed the first living cell yes it's yeah it's robert hook it's not robert brown yeah robert hook moving ahead we have the discovery right uh just give me one minute so we have the discovery discovery of the cell of course we have this apart from that we have the we know we call it as a shells as a structure in the functional unit of life and they are really very important we have animal cell and over here we have the plant set then let's talk about the types of cells that we have now of course we have in numbers we have unicellular organism like amoeba and bacteria which is one single cell that are capable of performing all the function by themselves and then of course we have the multicellular organisms right like us we have n number of cells and of course each of the cells perform a specific functions so of course the number of cells will be uh help us to identify the type of organism ud cellular organism and the multicellular organism then of course we have different cells and they have their specific functions like nerves that will help in the nerve conduction rbcs will actually help in the transportation of oxygen right of course we'll be carrying back the carbon dioxide and then we have the muscle cells and these are the smooth muscles that we're talking about they actually help in the involuntary movement talking about over here about the cell membrane yes i hope that all of you are clear yes deoxyribonucleic acid i think someone was asking for the full form of dna which is a plant cell in which the animal cell can you spot a difference yes we can easily now well once we'll be looking into it you'll be able to find nice i hope that it's clear good evening yes very good i can see thumbs up clear function of rbc sneha they actually help in the transportation of nutrient and the gases right he discovered the um vani right so of course i think your friend mentioned over there it was in some 74 right you can check the book they have mentioned about that when in which year even hawk actually saw the first living cell plasmolysis yes we'll be discussing about that okay then okay yeah we'll discuss about that once we're discussing about the cell wall let's check let's talk about the cell membrane and we are focusing on the we're focusing on the animal cell so those of you please pay focus now please pay attention and this is the animal cell that we're discussing about so here we have the animal cell and an animal cell the outer covering is called as the cell membrane very easy right we know that the uh it's very easy now of course it's a protective covering that actually holds the all the content of the cell together now we know that all of it will be present inside the cell and of course plasma membrane act as a barrier then apart from that it actually help in the transportation of the selected molecules only between the surrounding and that's why we call them as the selectively permeable right so plasma membrane is a selectively permeable membrane that allows the entry and the exit of only few particular molecule cell membrane is also called as plasma and yes okay another cell membrane is also present in the plant cells also very good anand i have answered your question can we focus in class yes cell theory was given by three scientists sharanji write two specifically which started with it we have skelton and sean right and then of course the dog added a very important post relate to it very good yes so they have answered that question say have answered that question of rbc they actually help in the transportation of nutrient and gases we don't have ncrd today but we will be having it really very soon in the next week so focus on that permeable means tia that will basically it is something that could allow the movement right awesome malaysia i think i've answered your question very good so we have the cell membrane are we clear very good very good yes protoplasm is nothing but the living content of the cell right that includes the nucleus and the cytoplasm basically the oil product organelles nucleus is there very good rashmi just made up of the pro lipids and the protein so here when we talk about the right the plasma membrane over here can you see the right we can see the structure so of course it has the combination of lipids and the protein and of course it has two layers of that and of course it has the different types of transport now there are two types of transport that occurs active transport and the passive transport and active transport there's a utilization of the energy right and the molecules will move from the lower concentration to the higher concentration that's why they need the energy the other type of the transportation is the passive transportation now no energy is required and it occurs really very smoothly from the higher concentration to the lower concentration so are we clear everyone yes i will be coming up to the different points deepanshu right uh isha just give me a minute right are we clear the two types of transport are there active and the um yes uh we have two types of transport active and the passive transport now when we talk about the passive transport we have two important thing over here now many of you are asking about this here we go we have the uh passive transport we have two important parts we have osmosis and diffusion right now in osmosis we know that the movement of the solvent molecules from the higher concentration to the lower concentration and when we talk about the osmosis we talk about the water per se then it is always takes place with the help of a semi-permeable membrane and of course osmosis occurs only in water in the aqueous solutions or this basically in the water content whereas diffusion will see we will see both the solute and the solvent movement from the higher concentration to the lower concentration there's no requirement of the membrane and of course it happens in the liquid in the gases are we clear yes so if i quickly wrap it up we have active transport right in active transport we will see the movement happening from the low concentration to the high concentration with the help of a tp energy is required in this right i'm not sure what is this exam you're talking about can we focus over here mania atp is used as an energy molecule energy currency of the cells of course it is used to perform various metabolic activities it's the energy that is required very good yes it is good atp and innocent triphosphate thank you rafiq yes sharanjit you need to wait but we will be coming to lysosomes we just need to wait for some time it's okay money no issues have just started how does plant cell divide we will be talking about that monolithic just give me a minute right yes we'll be discussing about that also now everyone see after each and every topic will give you time to ask doubt right so i want all of you to focus over here are we clear with this are we clear with what is cell about the cell theory right now about the shape and size of the cells different types of cells unicellular organism or multicellular organism and about the plasma membrane right and the type of transport now comes a very very very important part which is the different types of solutions or the tonicity of the solutions right so what we have over here everyone focus we have different types of solution first we're talking about the hypertonic solution what happened in hypertonic solution solutions with the higher concentration of the salute so over here if you can see in a water jar right let's suppose we have the mango right and we have added a great amount of salt into it and we have dissolved the salt now of course the salt over here is the solute sorry solute right now we have added into the water which is the solvent now what has happened right what will happen eventually the mango will lose it water and it will shrink because outside there's less water so of course it will lose the water and in that case the mango or the cell that is present in the hypertonic solution will shrink easy what will happen we'll see the shrinking yes okay got it bhumi should i explain it again so very simple we have this jar right we have this jar and we have the cell now of course it has salt into it and it has less salt very less salt let's just suppose one or two now it has more of water and less water is there outside what will happen the water will move outside and the cell will shrink and that is a hypertonic solution are we clear yes are we clear very good very good that is the hypertonic solution now can we talk about the hypertonic solution hypotonic what will happen everyone and hypertonic i've told you this thousand times what will happen in hypertonic solution a cell is there right and it has more amount of water yes what will happen the cell will swell up water will move inside and we will see the change in the shape of cell right we will see that it will swell right it will become like it will have more of the water yes very good it will expand now if we talk about this that we have a cell right and the concentration of the water is almost equal to the concentration that we have in the cell right a kind of a say what will happen nothing will happen equal movement will be there so of course that type of solution is called as isotonic solution right right everyone this is so this is we have already started so over here we have for the hypertonic and over here we have it for the isotonic very good isotonic yes isha equilibrium means that it will be in a balance like both the things will be equal right so we have three types of solution hypertonic hypotonic and isotonic right now i'll take some doubts i will be taking some doubts yes it's easy if you have any doubts you can write over here concentration means that of course it will be uh in terms of the concentration for example if you're talking the easiest way for you to understand let's suppose uh you have more amount of the apples and less amount of the banana at home like if you talk in terms of the apple and banana you have more of that and more of this concentration right okay yes are we clear everyone okay you're asking about the yes i will explain that again i will explain that yes okay i can see some few questions i'll just take them up okay first i think i can see is the tonicity right this is what why we have now of course it is nothing but the capability of a solution for example if we have a solution over here the capability of a solution to modify right the capability of a solution to modify or to change the cell shape basically right to change the alteration in the cell volume per se right so for example this has to do with the solution we are when we talking about it it has to do something with the solution when we add something to the water and to the solution that will be affecting the cell volume so it is the tonicity very good now i hope this is clear yes right i hope this is clear to you now i think uh there are a few of you who have some doubts the cell was discovered by the robert hook right very good we will be discussing about that nanite uh we will be discussing the tissues but is it the concentration of a solution yes it is ruby will be discussing about that when we will talk about the golgi apparatus hypertonic solution in hypertonic solution what will happen the cell will get the water from the beaker right and of course it will swell sorry it will swell so what will happen in the hypertonic solution the cell will swell it will take water then why we put mangoes in the vessels with the water part so of course mango over here is just an example right we can add any plant cells or any animal cells right so basically we are doing it to actually check the type of the solution right and of course if we add something to it what will be the effect on the cells yes we'll be discussing about that when we'll talk about cell division very good so everyone are we clear up to here now i can see many of you are asking a lot of random doubts which are not parts that we have covered as of now now i want you to as a doubt of the topic that we have just discussed plasma membrane osmosis diffusion so us neha in hypertonic remember it will shrink hypo remember hypo with the hippo hippopotamus right i'm sure you have heard about this animal yes yes mania we will have the discus doubt session class also yes so we have the uh sneha so what you can do you can remember remember this why we put rbcs in the concentrated solutions yeah what will happen if we put the rbcs in the concentrated solution of course if we have more salt and more of it we will see there will be the busting of the cell membrane it will not happen in the plant cells but it will happen in the animal cells yes uh shivanshu i think i've answered your question very good welcome homie to the class if you can write your question i'll be able to help difference between plant cell and animal cell we'll discuss diffusion may what will happen we will see the movement happening from the higher concentration to the lower concentration so if we have a jar right and of course on if when you add if you drop a ink into the water right slowly slowly what will happen we have in the dropper we have the higher concentration and it will fall and will move in all the direction from higher concentration to the lower concentration okay yes i can see your chat and i hope that this is clear now yes very good hypertonic solution have explained the cell will swell nice now let's talk about the another important topic that is nucleus and now i want all of you to focus over here on the nucleus right now we'll be discussing about the important points of nucleus and character you will be able to find the answer about the question that you have been asking so when we talk about the nucleus is the master of the cell we call it as that right and it has nuclear membrane which will be covering it right and inside it where we have the genetic material we have the nucleolus at the center and of course we have the nucleoplasm let's quickly discuss about all the important parts so we have nuclear membrane which is a double membrane right covering outside the nucleus it has small pores which are called as a nuclear pore through which we will see the material will be moving inside and out right it will allow the movement of materials between the cytoplasm and the nucleus per se then of course we have the nucleolus the next part is the nucleolus the nucleolus has the site of protein synthesis right basically it help in the synthesis of the ribosomes and ribosomes comes out and they are present on the er and the different parts of the cytoplasm on er they help in the synthesis of proteins so ribosomes plays a very important role then they occupy 25 of the nucleus and of course they're called as a brain of the nucleus so they're again very important right they're called as a brain of the nucleus then we have the nucleoplasm which is nothing but the fluid which is there and inside this fluid will have the chromosome so it's a fluid which is filled inside the nucleus contains the genetic material or the hereditary material and it is quite in similar to the cytoplasm of the cell right now we know that why we call uh nucleus as the brain of the cell because it controls various activity now we can say that it controls all the activity of the cell whatever is happening whatever be the happening of the cells function it is controlled by the nucleus that's why we call it as the center or the brain of the cell right are we clear tear heritability means genetic material yes part double membrane organelles we call them like we have different organelles which have double membrane right so we have this one nucleus tear pores means small hole so for example this this is a pore right on the membrane yes where is ribosome synthesis in nucleus in the nucleolus very good very good nice so as of now we have talked about the nucleus right focus everyone over here rather than on the chat now we know that nucleus has a nuclear membrane that actually covers the genetic material inside that we have the genetic material inside nucleus we have the nucleolus which is a site for the r basically site of the ribosome synthesis then we have the nucleoplasm which have the genetic material now when we talk about the nucleoplasm right we will be able to find the chromosomes there or the genetic material there now chromosomes are very beautiful structure right when they are condensed right they are the condensed condensed form of the dna now dna over here is a deoxyribonucleic acid and it is a genetic material of us right it contains all the information that we have the hair color the skin color etc we have it in the dna now dna wrapped around the proteins right when their dna will be wrapping around the proteins it will be forming a structure and when it forms more and more condensed form it forms the chromatin right it forms the chromatin yes and the chromatin will further condense and form the chromosome so if someone will ask you right the chromosomes are nothing but the genetic material which we'll be able to see only during the cell division if cell division is not happening they will be opened right they'll be scattered they'll not be condensed in this particular form will be able to see chromosomes only during the cell division are we clear with this are we clear with this everyone about the chromosomes ribonucleic acid surround shoranji we call it as a ribonucleic acid that nucleus right control and coordination will start amrita once we are done with the midterm because in the first time we have this only life process yes the green part centromere difference between prachit the chromatin and the chromatids so chromatid of course is a one arm right that we say see this is the chromatid okay that is chromatid and chromatid is something which is this one right it gets more and more condensed yes if you open the chromosome you'll be able to see dna wrapped around with the proteins and that part that structure the bead like structure that you see over here right this is chromatin are we clear with this everyone very good very good now of course if we talk about the chromosome this is important thing you can talk about right now we have these small segments of the dna sequence that contains the important information and we call them as the gene yes they just just just and answer your question the small segments of the dna right that carries a specific function right for example your hair color or your skin color that particular trait will be carried by the genes yes nikita brain of the nucleus is nucleolus very good yes neha rajput hello and now many of you are asking about this right prokaryotes and the eukaryotic cells so here we have so prokaryotic cells are those whose genetic material is freely suspended they are not present in the nuclear membrane so once the genetic material is freely suspended we call it as a nucleoid are we clear many of you was asking about this so here we have nucleoid a cell which has a primitive nucleus and devoid of most of the cell organelle we call it as a prokaryotic sin are we clear right over here we have the example and we see this in the bacteria then of course we have eukaryotic organisms like ours right which we have the nucleus the genetic material is contained inside the nuclear membrane right and of course we have this yes uh devdas are you asking about the carry-on over here we have nuclears carry-on means nucleus they just many whose chromosomes are single now now chromosomes number varies from individual to individual and organism to organism right i may just have mentioned over here swapnil thank you for helping amit prokaryotic cells over here now prokaryotic cells are those which does not have the nucleus and they have genetic material freely suspended and we call it as nucleoid they just need very good help for helping your friends out there okay are we clear now you're asking about the chromosomes now chromosomes are the genetic material right of course they are condensed form okay can i start with that okay everyone focus over here now what is this can you tell me quickly everyone tell me what is this the one thing i have drawn on the board right yes dna very good now our dna is really very long right it's very very long now it needs to compress and uh it needs to be for example it needs to go inside the circle which is the nucleus so for this what will happen it will actually get packed on the proteins so this dna will wrap around on the proteins okay and it is as it is wrap around the proteins what will happen it will form these structures right will form a very condensed structure a long chain of this and this we call it as chromatin are we clear quickly everyone are we clear right is the chromatin yes now further this chromatin during the cell division will come and it will form a beautiful structure which is called as the chromosome are we clear everyone yes so we have the chromosomes and now this chromosome during the cell division will be able to see are we clear very good so dna will get packed with the proteins plus dna will form the chromatin and once they arrange themselves they'll be arranging in the form of chromosomes and during cell division we'll be able to see them kitchen of the cell is the chloroplast yes it's correct we call it as a plastids also right plastids chloroplast is there in the plants quickly everyone wearing big thumbs up will help me yes thumbs up everyone very good very good yes very good very good everyone so till now we have discussed about the uh we have discussed about the cell right the different types of cell shape we have discussed about the discovery of the cell also we talked about the plasma membrane and we have just spoken about the nucleus dna full form deoxyribonucleic acid very good yes very good very good nice now let's move ahead and let's talk about the cell organelle i can see many of you are asking about doubts about the organelles i will be answering all of those doubts now right very good yes you can help your friends out there right sharanji thank you for helping please write the full forms of it i've already mentioned dna deoxyribonucleic acid rna ribonucleic acid atp adenosine triphosphate that's good okay now talking about the cell organelles we know that cell organelles are present inside the cells and of course they have a very specific function we are starting with mitochondria now for this you can quickly take a screen shot of it right i'll just quickly move now this is important everyone now all of these slides have been made in such a way that you can quickly revise them in the examination so mitochondria will act as a powerhouse of the cell and will play a very important role in the synthesis of the atp generation so atp production atp which is the energy currency of the cell occurs in the mitochondria that's a very important function of mitochondria mitochondria have its own dna right own dna and it can make its own proteins right can make its proteins okay it has its own dna and it's capable of making its own protein so atp is adenosine triphosphate very good now let's talk about the other cell organelle we have these smooth er so now over here we have er smooth er help in the synthesis of lipids many of you are asking right sneha sneha for you you can start spamming now and focus over here so smooth endoplasmic reticulum is where we'll see the synthesis of the lipids right well there's instead of lipids here and it plays a very very important role now smooth er does not have the ribosomes on top of them that's why their surface is really very smooth opposite we have the rough endoplasmic reticulum that is r e r where of course ribosomes are present on them and they are the site of protein synthesis so lipids are made made by the ser and rough endoplasmic reticulum makes the protein right lipids and protein together will be making the plasma membrane by the process of by the process of you can tell me right membrane biogenesis right very good yes are we clear sharon jeez why we call mitochondria because it's make atp the energy which is required by the cells to perform lot of activities comes from the mitochondria the atp that it produces very good yes they are present in both eukaryotes as well as in the prokaryotes yes ashraf have just explained er two types of er smooth endoplasmic reticulum and rough endoplasmic reticulum smooth will synthesize the lipids and roughly synthesize the proteins very good thank you rashmi for helping anand we'll be covering up that topic you need to wait some time very good everyone now moving ahead to the golgi apparatus right the golgi bodies plays a very important role in the packaging modification and in the transportation that's why we call it them as the postman of the cell also so golgi bodies will be receiving the proteins and the lipids they will receive it right they will modify it they will pack it they will transport it to the different parts of the cell very good very good very good i'll be clear mr golgi yes anand you can find the answer students please help anand who is a scientist who actually found the golgi paritis very good they just when right he's a scientist who actually discovered the golgi bodies and that's why it got its name golgi yes so um yes very good so shivan shall help you with this one side is where the where it receives and one side is very very transfer the material so i hope that helps yes one will be on the receiving side and one will be there on the exiting side so cell theory was given by initially two scientists skeleton and schwann right they said that cells are the structure and the fundamental unit of life and all living organisms are made up of cells then then rudolph added an important postulate that cells arise from the pre-existing cells very good now moving ahead to the next one which is lysosomes i think uh who's asking i forgot the name but lysosomes are also called as the suicide bags of the cell right they contain the hydrolytic enzymes or the digestive enzymes so any of if there's any waste material or if there's any pathogen which have entered what these lysosomes will do they will go and they will destroy it by releasing the hydrolytic enzymes or the digestive enzymes just in case the cell is not performing well right cell activity is not well what they will do they will release the enzymes right and the cell will die that's why we call them as the suicide bags of the cell this is important everyone common question is right yes anand was asking i hope that ananth you got the answer so it will actually help in the breakdown of the molecules different foreign materials and sometimes the worn out organelles also for example mitochondria is not working in the cell right so this lysosome will detect it by the signals that are moving and of course it will go and destroy that mitochondria are we clear very good very good shweta so everyone have a clear quick thumbs up yes poorly you're asking that what does it modify so what happens we are getting the proteins and lipids right now they can be in n number of shape there will be a little requirements right modify and sense that if it's properly structured right so they will do their modification for example um let's suppose you go to uh let's suppose you go to a showroom right to get a dress and you like the dress and you bought the dress but you feel that the height of a dress is little bit low so what little little bit high so what you'll do you'll go to the tailor they'll modify here and there a little bit right that's what the lysosomes will do they'll make sure it is properly modified so that it can easily get packed and go to the required place where it is it is basically required be the lipids or the proteins yes contain membrane bound structure yes it has one membrane very good nice now everyone till now we have discussed about the discussed about the animal cells right now of course there's one important part which is the cytoplasm the cytoplasm is a jelly fluid right jelly structure fluid which of course has all the organelles a lot of reactions occurs right and all these cell organelles are freely suspended are suspended in the cytoplasm yes very good rashmi says side right shivan shivanshu rashmi is answering says matlab on the receiving side and transfer the from the transfer side where towards the er so it can transfer now we'll be discussing about the plant cell now many of you asked about the plant cells right now plant cells have the cell wall that's the biggest difference then of course the second difference is the vacuole plant cells have big vacuole and vectored plays a very very important role in the storage right in both the plants and the animal cells vacuoles are present but in animal cells the size of vector will be really very small and of course in plant cell they provide the turgidity to the cell it actually helps the plant cell to maintain its structure that's the role of the vicuole then of course only plant cells have the cell wall right animal cells have no cell wall but plant cells have the cell wall and cell wall is rigid right it is dead and of course it provides a protection to the plant set right very good then comes the very important part you were asking about the kitchen of the cell is called as a plastic specifically when you talk about chloroplasts right which has a green pigment called as a chlorophyll and over here we will see the process of photosynthesis happening it has a green pigment right the other type of chloroplast is chromoplast which gives beautiful color to the flowers and to the fruits that's the chromoplast the last one we have leukoplast now leukoplas actually helps in the storage right of starch oil fats etc and it is usually found in the roots which has no pigment white pigment very good are we clear right we are clear up to here yes whereas chloroplast is also called a semi-autonomous organelle plastics also have their own dna the very important point they also have their own dna which part is of the cellulose cellulose is present in the cell wall yes glasses is only present in the cell very good very very good okay are we clear with this so if we go back we have discussed about the organelles yes now ribosomes i'll say that i'll write over here right ribosomes yes ribosomes are very small structures right and they are present on er that to rough er and they help in the synthesis of protein right uh praji because mitochondria and placid both have their own dna and they are capable of producing their own proteins good evening yes i think many of you are here how many enzymes now uh i should i'm not sure you're talking about it but enzymes act as the catalyst they actually help in reactions to happen and there are so many enzymes in ourselves yes i'll be clear up to here everyone yes quickly thumbs up see we are going really very slowly and we have already covered this i don't know i think uh by now you should have everything in your mind devdas we will have them empty but as of now we are learning so first we'll learn and then of course we'll have the quiz straw and vacuum we don't have that stroma you're talking about the strawberry that we of course we have stromata which is a different part which is a different pla it is there on the epidermis of the leaf right basically it is there in the epidermis it's present in the leaves right and of course trauma that's there in the chloroplast now with that we are on the final topic of cell division cell is of two types mitosis and meiosis what will happen in mitosis that the daughter cells will have will be the identical copies of their parents very good rashmi but got your point right so in mitosis the parent cell and the daughter cells will have same number of chromosomes right daughters will be the identical copy of parent cell and that division is called as mitosis equation division or equal division the number of the chromosomes will not be getting half for example over here what we have deployed two sets are there right so it is that now in this mitosis it occurs in the skin it occurs in the stomach the cells that we have over there right very good very good sveta deployed to deploy right the chromosome number will stay intact very good so if i write over here that you all are mentioning diploid state the number of chromosome will be in the pair we represent that as 2 n yes and then the next type of course we have the meiosis right in meiosis is called as a reductional division now in meiosis we know that the number of chromosomes will get half from the diploid as you see over here to the haploid right see the number of chromosomes being reduced from 46 to 23 and in mitosis we'll have two daughter cells formation and over here we have four one two three and four four daughter cells are formed are we clear at law at the breakdown of pyruvate to give co2 water energy takes place in mitochondria but that's a class 10th question not class ninth question are we clear what are semiautonomous organelles that uh get up what an interesting name you have so basically these are the organelles that are capable of making their own dna they have their own dna sorry not capable of making their own dna they have their own dna and they can make their own proteins they're kind of independent in that way semi-autonomous right they're not fully independent but they are semi very good ashraf now you're asking any question yes very good so i'll be clear everyone about the two types of cell division in the cbsc they haven't not basically they have not gotten into the details of it right in the cell division if you say meiosis will occur in the gametes in the production of sperm and the ovum right part deployed in haploid are the number of chromosomes basically when we say now applied cells will have the half the number of chromosomes over here this is the haploid state n diploid it will have double the number of chromosomes yes monolithia how plant cell divides of course we'll see this division happening right and they will have the mitosis do you think we will have the meiosis what do you think think about it everyone zygote means after the fertilization of sperm and ovum we'll see the formation of zygote punya i have been looking for this question i don't have the answer for this this is kind of not a logical question right i don't know i think scientists just came up with this thing nice everyone are we clear come on i think we have covered up all the important points why the number of chromosomes reduced to half because of the cell division right what happens the number of chromosomes the chromosomes get mixed and there's a division happens and then during the division process only half the the cell will receive only the half the number of chromosomes and that's why over here we have four cells formation so half of this will go so if we have 46 chromosome half will go in this and half will go in this very good everyone i think this is clear awesome now i want to see a very quick chain of smileys and thumbs up everyone after a lot of hard work we all are here yes are we clear yes very good very good very good if you have any doubts please ask me i'll just stay for here like no we'll just if you have any doubts if you have missed anything we can quickly discuss over here function of atp atp is adenosine triphosphate this actually gives the energy it's a energy molecule right so whenever there is an energy requirement in the cell in any of the reactions atp will go and help in the conduction of the reaction ma'am they're starting they were 46 but how they become two cells of force so uh that happens because of the cell division yes over here we have a cell it has 46 during the division what will happen first division 23 will happen right that's how we'll if we talk about it right now of course first of course we can see this now we can see the number of chromosomes getting half from 2n to end yes m phases mitotic phase where we'll have the different phases prophase metaphase anaphase telophase we will have many for sure but not today but some other day yes are we clear quickly everyone happy face is right awesome ronak you can watch the video about it again it is not in the cbsc if you want to learn more about cell division we have done a detailed video on cell division you can definitely watch it yes very good with this everyone we are done and you know that all the teachers are talking about it so 7th of 7th of january sorry 7th of august is a very important date so stay tuned right you know that vices have got you covered we are there for you here's a proof of the hard work if we you if you stay you know we stay with yourself you will study properly on that result is really very it's you can easily achieve it and with us in the picture we'll have amazing results and with that don't forget to hit the like button for the video share with your friends and subscribe everyone we really want to reach the 100k so we really want your help with that if you're new to the class please subscribe to the channel please subscribe to the channel yes mitosis is a type of cell revision where of course we'll see the equal division just remember you have skin right now each and every time you get a scar or a wound what will happen the skin will repair itself same type of cells will be coming here so in mitosis equation division number of chromosomes remain equal yes himani and lord law you have to you have to wait you can think about it but it's a very interesting thing that will be happening welcome to the family subscribe thank you sumit thank you so much for subscribing to the channel everyone please subscribe right and how many of you have liked the video for your teacher that means a lot that means a lot now i understand this there are times when you know what happened that you might feel that ma'am it's too much you know there are few still some doubts i would request you to watch the previous video that we have already done on the specific topics that will be helping you to learn better you can watch them on 1.5 x you don't have to listen right like you can just quickly make them on 1.5 x and very quickly you'll be able to have through you can actually listen all the session reduction division or ronit means the basically we call meiosis at the reductional division which is nothing but the chromosomes will be getting up to half and we'll have four cells at the end you wash it at two it's very good yeah that is also good nice so can we close a class everyone i hope that you have enjoyed and i hope that this session have helped you know have helped you a lot in clearing up your doubts and a very quick revision of the fundamental unit of life now even after i can see that you know even up like we have been learning this for a very long time but i can still see there are students who have doubts so i would request to all of those students please read your ncrt right that will be helping you yes thank you ronak thank you priyanshu thank you manju very good very good everyone awesome everyone will be meeting in the next class of that time take care of yourself lots of love everyone lots of love this is the way i think the new signs right lots of love and will meet soon bye bye you