Week 2
Mon
Diffusion + Circulatory and respiratory system
Tues
Digestion + enzymes
Wed
Endocrine
Fri
Removing waste
Monday
Monday
Research and answer the following
Cardiovascular questions
1. Describe the function of the cardiovascular system
2. Name the two circulatory loops and state what they transport and what they connect to
3. Name 4 parts of the heart
4. Describe what a blood vessel is and List the three types of blood vessels in the body.
5. What do arteries transport and describe how they withstand high levels of blood pressure
6. What is an arteriole?
7. What do capillaries do?
8. What do veins do?
9. Define blood and its function
10. Explain the 4 components blood
11. What is blood’s role in the exchange of materials throughout the body
Respiratory questions
1. What is the role of the respiratory system and what does it transport around the body
2. Name the 3 major parts of the respiratory system and describe their functions.
3. Describe the functions of the following organs:
1. Pharynx
2. Larynx
3. Trachea
4. Bronchi and bronchioles
5. Lungs
6. cillia
7. Alveoli
4. What are the two main gases that are transported in the respiratory system
5. How does the respiratory system work with the circulatory system?
1. Explain how the circulatory system and respiratory system work together to support cellular respiration.
Collect from Mrs Jurd
Using Graph paper: graph the data in a bar graph
Jenny performed an experiment to determine the effect of exercise on her heart rate (pulse rate). Her results are shown in the table.
ACTIVITY
PULSE RATE
resting (calm, relaxed)
90 beats/minute
2 mins of running
133 beats/minute
2 mins of hopping
110 beats/minute
2 mins of jumping
105 beats/minute
Research Questions:
1. What is diffusion?
2. Where does diffusion happen in the lungs?
3. How does diffusion help our cells get oxygen?
4. What happens to carbon dioxide in the body?
5. Why is diffusion important for survival?
6. Which substances diffuse into the bloodstream from organs in the human body? You may highlight more than one box.
1. carbon dioxide
2. glucose
3. oxygen
4. urea
5. water
DEMO Diffusion of a Tea Bag in Hot and Cold Water
Aim:
Independent Variable:
Dependant Variable:
Equipment:
* 2 beakers
* 2 tea bags (the same type)
* Hot water
* Cold water
* Timer or stopwatch
Method:
1. Place one tea bag in each of the two empty cups.
2. Fill one cup with cold water.
3. Carefully fill the other cup with hot water (ask your teacher to help).
4. Start the timer as soon as the water is added.
5. Watch what happens to the tea in each cup over 5 minutes.
6. Record what you see at 1-minute intervals.
Time (minutes)
What happens in cold water?
What happens in hot water?
1
2
3
4
5
Conclusion:
* In which cup did the tea spread faster?
* Why do you think this happened?
* "The tea spreads faster in the __________ water because the particles move __________ when they are __________."
* How could I improve the experiment?
Tuesday
Research and answer:
1. What do enzymes do? Enzymes help break down food
3. What is activation energy? It’s the energy needed to start a reaction
4. What is a substrate? It’s the substance an enzyme works on (like food the enzyme breaks down).
5. What is an active site? It’s the part of the enzyme where the substrate fits—like a key fitting into a lock.
For each enzyme describe its purpose and how it helps in digestion:
Fill in the table below:
Enzyme:
Function and how it aids digestion:
Protease
Proteins to Amino acids, Helping build and repair muscles and tissues
Amylase
Starches to Sugars, Giving the body energy from foods like bread and rice
Lipase
Fats to Fatty acids and glycerol, Helping the body use fat for energy and store it properly
Answer the following questions:
1. What enzyme is produced by the salivary gland? Amylase
2. What enzyme breaks down protein? Protease
3. What is fat broken down into? Fatty acids and glycerol
4. What enzyme works in the stomach? Protease
5. What enzymes break down food in the small intestine? Amylase, protease, and lipase
6. Why is it so important to break down the large molecules? So the body can absorb the small nutrients and use them for energy, growth, and repair
7. Where does digestion start? In the mouth
Wednesday
1. What is the role of the endocrine system?
2. Please research and fill in the table below.
Name of GLAND
Where gland is found
in your body
Name of Hormone(s)
secreted by this gland
Functions controlled
By these hormones
Image of the gland
PITUITARY
THYROID
ADRENAL
PANCREAS
TESTES
OVARY
3. Your job is to investigate one of the following hormone disorders:
4. * Type 1 diabetes
* Type 2 diabetes
* Growth hormone deficiency
* Acromegaly
* Hyperthyroidism
* Hypothyroidism
You will need to summarize the key information in a table and then create an engaging advertising campaign to raise awareness about the disorder
Research Question
Notes (Write in full sentences or dot points)
What is the name of the disorder?
Which hormone is affected?
Which gland produces this hormone?
What does this hormone normally do?
What causes the disorder?
What are the symptoms?
How is it diagnosed?
How is it treated or managed?
Who is most at risk?
Why is it important to raise awareness?
Friday
Organ
Waste Item
How does it excrete it
Skin
Liver
Digestive System
Kidneys
Lungs
2. Blood being pumped to the kidneys for filtering is an example
of which two systems working together?
a. excretory and digestive
b. excretory and respiratory
c. excretory and circulatory
d. excretory and skeletal
3. The major organ of the excretory system is the
a. lungs
b. stomach
c. kidneys
d. large intestine
4. Which of the following would NOT be considered an organ
of the excretory system?
a. liver
b. kidneys
c. skin
d. gall bladder
5. The main function of the excretory system is rid the body
of ______________.
6. The skin helps the body maintain homeostasis by riding
the body of excess _____________ and salt.
7. What important function do the lungs perform in the
excretory system?
8. Where is urine produced by the kidneys stored before it is
disposed of through urination?
9. Atier heavy exercise, an athlete is likely to have lower than
normal urine output. Why do you think this happens?