7.1 Cell Division

Question 1

What are the two types of regulatory protein?

Answer 1

Stimulating, inhibitory

Question 2

What does a stimulating protein do?

Answer 2

It starts up the cell cycle

Question 3

What does an inhibitory protein do?

Answer 3

It slows down the cell cycle

Question 4

What sections does the cell cycle consist of?

Answer 4

G1, G0, S, G2, M

Question 5

What happens in G1?

Answer 5

Checks getting ready for replication

Question 6

What happens in S?

Answer 6

Replication

Question 7

What happens in G2?

Answer 7

Growth and prep for mitosis

Question 8

What happens in M?

Answer 8

Mitosis

Question 9

Why would a cell go into G0?

Answer 9

G0 is where cells go when they aren’t sufficient enough in resources to stay in the cycle and do their job.

Question 10

What is differentiation?

Answer 10

Changes in structure or function to a cell

Question 11

After a cell differentiates: when it divides, does it keep the mutation?

Answer 11

Yes

Question 12

Are there trends in cancer?

Answer 12

Not really

Question 13

Why do cells divide?

Answer 13

Growth & replication

Question 14

Proto-Oncogenes vs Oncogenes

Answer 14

Proto-Oncogenes are the unmutated version of an oncogene

Question 15

What causes cancer?

Answer 15

When a cell regulator is mutated and switched on permanently, causing rapid division.