Disruptions in the Cell Cycle and Cancer

Question 1

How does Cancer occur

Answer 1

Cancer occurs when cells lose control of the cell cycle and divides uncontrollably.

Question 2

Why does cell cancer occur?

Answer 2

Failure of apoptosis
Loss of cell cycle regulation
Mutations in DNA

Question 3

Characteristics of Cancer Cell

Answer 3

• Uncontrolled division
• No apoptosis
• Forms tumors

Question 4

How is the Cell Cycle Regulated

Answer 4

The cell cycle is regulated through checkpoints that ensure accurate division.

Question 5

What happens if these checkpoints fail

Answer 5

If these checkpoints fail, damaged or abnormal cells may continue to divide, increasing the risk of uncontrolled cell growth and cancer

Question 6

What happens if apoptosis fails

Answer 6

If apoptosis malfunctions, cells that should die continue to survive and divide. This can lead to uncontrolled cell growth, the accumulation of mutations, and the development of cancer.

Question 7

Steps in Development of Cancer

Answer 7

1. Mutation in DNA
2. Loss of Cell Cycle Control
3. Apoptosis fails