Final - Quiz #11

Question 1

The major function of cAMP in animal cells is to activate:
     A. Adenylyl cyclase
     B. Protein kinase A
     C. Protein kinase C
     D. Tyrosine kinases

Answer 1

B. Protein kinase A

Question 2

Rhodopsin in the vertebrate retinal photoreceptor cells results in a change in the second messenger \_\_\_\_\_\_\_\_, leading to the opening of ion channels in the plasma membrane and the production of a nerve impulse.
     A. Ca2+
     B. cAMP
     C. cGMP
     D. IP3

Answer 2

C. cGMP

Question 3

MAP kinase is an abbreviation for \_\_\_\_\_\_ protein kinase.
     A. Microtubule - associated
     B. Mitogen - activated
     C. Mitosis - activating
     D. Mitosis - associated

Answer 3

B. Mitogen - activated

Question 4

Which of the following represents the amount of DNA in a typical G2 cell? [Double check if G2 or G0]
     A. n
     B. 2n
     C. 4n
     D. 8n

Answer 4

C. 4n

Question 5

The G1 checkpoint in animal cells is called: [Double check if G1 or G3]
     A. START
     B. The restriction point
     C. The decision point
     D.  The G1/S boundary

Answer 5

B. The restriction point

Question 6

MPF is a general regulator of the transition from:
     A. G1 to S
     B. S to G2
     C. G2 to M
     D. Metaphase to anaphase

Answer 6

C. G2 to M

Question 7

Cells are restricted to one round of DNA replication per cycle by origin of replication binding proteins called:
     A. ATMs
     B. Akts
     C. Oris
     D. MCMs

Answer 7

D. MCMs