Question

7. Which statement is TRUE of glycogen synthesis and breakdown?---->the answer is A but I need it explained to me.

		a.	Phosphorylation activates the enzyme responsible for breakdown, and inactivates the synthetic enzyme.
		b.	Synthesis is catalyzed by the same enzyme that catalyzes breakdown.
		c.	The glycogen molecule "grows" at its reducing end.
		d.	The immediate product of glycogen breakdown is free glucose.
		e.	Under normal circumstances, glycogen synthesis and glycogen breakdown occur simultaneously and at high rates.

Answer 1

Answer

Option A is correct i.e " Phosphorylation activates the enzyme responsible for breakdown, and inactivates the synthetic enzyme.".

Explanation

Glycogen synthesis process is known as glycogenesis i.e controlled by glycogen synthase enzyme but this enzyme gets inactivated when it gets phosphorylated by kinases and becomes active when dephosphorylated by phosphatases.

Glycogen breakdown is known as glycogenolysis i.e controlled by Glycogen phosphorylase enzyme and this enzyme becomes when it gets phosphorylated by kinases.

Answer 2

Which statement is false about glycogen synthesis quiz