Back to notes
What role do spindle fibers play during mitosis?
Press to flip
Spindle fibers help in the movement of chromosomes towards opposite poles of the cell during Anaphase.
What occurs during Prophase of mitosis?
During Prophase, chromosomes condense and become visible, and the nucleus begins to break down.
What needs to occur with chromosomes during interphase before mitosis can begin?
Chromosomes must duplicate during interphase to ensure that each new cell receives an identical set of genetic material.
During which phase of mitosis do chromosomes line up in the middle of the cell?
During Metaphase, chromosomes line up in the middle of the cell.
What is the key event that characterizes Anaphase in mitosis?
In Anaphase, chromosomes separate and move towards opposite poles of the cell, assisted by spindle fibers.
What happens to the nucleus during mitosis?
The nucleus, present during Prophase, breaks down and disappears, and new nuclei form during Telophase around the separated chromosomes.
Explain how the integrity of tissues is preserved during mitosis.
The integrity of tissues is preserved during mitosis by ensuring that identical cells replace old or damaged ones, like skin cells replacing skin cells.
Explain the importance of the interphase in the cell cycle.
During interphase, cells grow, replicate DNA, and perform their specific functions, preparing them for subsequent division. It is the phase when cells spend most of their time.
How does mitosis differ from meiosis in terms of cell production?
Mitosis is involved in creating identical body cells for growth and repair, whereas meiosis is responsible for producing gametes (sperm and egg cells) that have half the genetic material of the parent cell.
Describe what happens during Telophase in mitosis.
During Telophase, chromosomes reach the cell poles and new nuclei form around them, marking the nearing end of cell division.
What are the four stages of mitosis and what acronym can be used to remember them?
The four stages of mitosis are Prophase, Metaphase, Anaphase, and Telophase. They can be remembered using the acronym PMAT.
How many chromosomes do humans usually have in their body cells?
Humans usually have 46 chromosomes in most of their body cells.
What is the primary purpose of mitosis in body cells?
The primary purpose of mitosis is to produce identical cells for growth and repair of tissues.
Why is controlled cell division crucial for organism health, especially regarding cancer?
Controlled cell division ensures normal growth and repair, preventing uncontrolled growth such as cancer, which occurs due to unregulated mitosis and cell division.
Why is the study of mitosis crucial for understanding cancer treatments?
Studying mitosis helps understand how disruptions in normal cell division processes can lead to cancer, thus informing potential treatment and prevention strategies.
Previous
Next