8

Question 1

How are the signals in Checkpoints transfered?

Answer 1

Signal transduction pathways

Question 2

The Check points are used to?

Answer 2

Whether key cellular processes have been completed correctly

Question 3

What are the 3 major check points?

Answer 3

G 1
G 2
M Phase

Question 4

If the cell doesn’t pass the G 1 check point it?

Answer 4

Leaves cell cycle and goes to G0 Phase

Question 5

Most cells in the human body are in what ohase?

Answer 5

G0 Phase

Question 6

What controls the pace of the cell cycle?

Answer 6

Rhythmatic fluctuations in the abundance and activity control the molecules for pace

Question 7

The regulatory proteins in the cell cycle are?

Answer 7

Protein Kinases

Question 8

What does the Protein Kinase do?

Answer 8

Activate or deactivate other proteins by phospholatin them

Question 9

Protein Kinase is required to be attached to?

Answer 9

Cyclin to become activated

Question 10

Cyclin levels rise during?

Answer 10

Interphase

Question 11

Cyclin levels fall during?

Answer 11

Mitosis

Question 12

What does MPF do?

Answer 12

Triggers the cell’s passage past G2 checkpoint to the M point

Question 13

How does MPF.promote Mitosis?

Answer 13

By phospholating a variety of protein Kinases

Question 14

MPF stimulates?

Answer 14

Fragmentation of the Nuclear Envelope by phosphorylation of proteins of the Nuclear Lamina

Question 15

MPF also triggers the breakdown of?

Answer 15

Cyclin to drop cyclin and MPF levels during Mitosis to inactivate MPF