The citric acid cycle is considered to be the central metabolic pathway for all the following reasons, except:
a. It is involved in the metabolism of sugars and amino acids.
b. It is involved in the metabolism of amino acids and lipids.
c. It links anaerobic metabolism to aerobic metabolism.
d. Many of its intermediates are starting points for synthesis of a variety of compounds.
e. All of these are reasons why the citric acid cycle is considered to be the central pathway.
Question 2
The enzyme pyruvate carboxylase
a. is not subject to allosteric control
b. requires biotin for activity
c. catalyzes a reaction that does not require ATP
d. is inhibited by acetyl-CoA