Question

why are checkpoints important?
a. they speed up division
b. they cause mutations
c. they prevent damaged cells from dividing
d. they destroy proteins

1. what can happen if checkpoints fail?

a. dna is repaired faster
b. cells divide less
c. cells with damage may divide
d. the cell dies immediately

1. day 2 – matching

match each term with the correct description.
____ checkpoint
____ cell cycle
____ dna damage
a. control of division
b. process of growth and division
c. a problem that must be fixed
day 2 – short answer

1. what does a checkpoint check for before cell division?
2. why is stopping the cell cycle sometimes helpful?

Explanation:

Step1: Answer checkpoint importance

Checkpoints monitor cell health pre-division.

Step2: Answer checkpoint failure outcome

Failed checkpoints let damaged cells divide.

Step3: Match checkpoint to description

Checkpoints are division controls.

Step4: Match cell cycle to description

Cell cycle is growth/division process.

Step5: Match DNA damage to description

DNA damage is a fixable problem.

Step6: Answer checkpoint check purpose

Checkpoints verify cell readiness for division.

Step7: Answer cell cycle stop benefit

Stopping lets cells repair damage.

Answer:

11.

• Why are checkpoints important?

C. They prevent damaged cells from dividing

• What can happen if checkpoints fail?

C. Cells with damage may divide

12.

• Checkpoint: A. Control of division
• Cell cycle: B. Process of growth and division
• DNA damage: C. A problem that must be fixed

Day 2 - Short Answer

1. A checkpoint checks for DNA damage, proper cell growth, and readiness (like sufficient resources) to ensure the cell is fit to divide.
2. Stopping the cell cycle gives the cell time to repair DNA damage or correct errors, preventing the passing of mutations to daughter cells and avoiding the formation of abnormal or cancerous cells.