1What is mitosis?
Mitosis is cell division that makes identical cells.
2Why do we need mitosis?
Mitosis helps us grow, repair tissues, and reproduce asexually.
3What controls cell division?
Genes control the cell cycle.
4What are the steps of the cell cycle?
The steps are G1, S, G2, and mitosis.
5What happens in interphase?
The cell grows, copies DNA, and gets ready to divide.
6How many stages does mitosis have?
Mitosis has four stages.
7What are the four stages of mitosis?
Prophase, metaphase, anaphase, and telophase.
8What happens in prophase?
Chromosomes shorten, spindle fibers form, and the nuclear envelope breaks down.
9What happens in metaphase?
Chromosomes line up in the middle of the cell.
10What happens in anaphase?
Chromatids are pulled apart to opposite sides.
11What happens in telophase?
Chromatids uncoil, and two nuclei form.
12What happens after mitosis?
The cell grows and prepares for the next division.
13How can you measure mitosis time?
Count dividing cells and calculate the time for each stage.
14What is cancer?
Cancer is when cells divide out of control.
15Why do cancer cells form tumors?
They divide too much and don’t stop.
16How do cancer treatments work?
They stop cells from copying DNA or dividing.
17What do chemotherapy drugs do?
They block DNA copying to stop cancer cells from dividing.
18How does radiation treat cancer?
Radiation damages DNA and kills cells.
19What is apoptosis?
It’s when damaged cells self-destruct.
20What happens when cancer drugs harm normal cells?
They can cause side effects like hair loss.
21What are spindle fibers?
They pull chromosomes apart during mitosis.
22Why is mitosis a continuous process?
The stages flow smoothly into one another.
23What happens in G1, S, and G2?
The cell grows, copies DNA, and prepares to divide.