3.8 the cell cycle Flashcards
1
Q
what is cancer?
A
group of diseases caused by a growth disorder of cells
2
Q
what is cancer a result of?
A
result of damage to the genes that regulate mitosis and the cell cycle
3
Q
what does damage to the genes that regulate mitosis lead to?
A
uncontrolled growth and division of cells
4
Q
what is a tumour?
A
group of abnormal cells
5
Q
what can the rate of mitosis be affected by?
A
- environmental of the cell
- growth factors
6
Q
how fast do malignant cells grow?
A
quickly
7
Q
how fast do benign cells grow?
A
slowly
8
Q
how does chemotherapy disrupt the cell cycle?
A
- preventing DNA from replication
- inhibiting the metaphase stage of mitosis by interfering with the spindle formation
9
Q
what is a problem with cancer drugs?
A
disrupt cell cycle of normal cells
10
Q
list the 3 main stages of the cell cycle
A
- interphase
- nuclear division
- cytokinesis
