cell 6 Flashcards
1
Q
What is the cell cycle cont tol systen?
A
Operating set of molecukes that trigger and coordinates key events in the cell cycle
2
Q
What are the 3 major check points?
A
G1
G2
M Phase
3
Q
If a cell does not receive a go signal at G1 it?
A
Cell exits the cycle and goes into G0
4
Q
The regulatory proteins are mainily?
A
Protein Kinases and cyclins
5
Q
For a Kinase to be active it has to be attached to a?
A
cyclin
6
Q
When do the cyclin levels rise?
A
During s and g2 phases
7
Q
When does the cyclin level fall?
A
During M-phase
8
Q
What do MPFS do?
A
Triggers the cell’s passage past g2
9
Q
When cyclins accumulate during g2 with cdk molecules the resulting MPF?
A
Phospholate a variety of proteins starting mitosis
10
Q
During Anaphase the cyclin components?
A
Degrade ending the M Phase
The cell enters the g1 phase
