Problem:
Question 1: Cytokinesis in animal cells is dependent on
a. The phragmoplast
b. The prepophase band
c. The contractile ring of microfilaments
d. interpolar microtubules
Question 2: In a heterotrimeric g protein, which subunit has GTPase activity?
a. Alpha subunit
b. B. beta subunit
c. Gamma subunit
d. Beta-gamma complex
Quetstion 3: Which one of the following is NOT a small intracellular signaling molecule
a. cAMP
b. phospholipase C
c. inositol triphosphate (IP3)
d. diacylglycerol (DAG)
Provide the correct answer and justification for your choice.