Question
What feature is common to both the Krebs cycle and the Calvin cycle?
A. They are forms of catabolism.
B. They are forms of anabolism.
C. They involve reduction reactions.
D. They produce large amounts of ATP.
▶️Answer/Explanation
Ans: C
Question 30
The production of isoleucine from threonine is summarized in the diagram. This process involves several steps and is regulated by feedback inhibition.
What occurs during isoleucine production?
A. Isoleucine inhibits the conversion of intermediate W to intermediate X.
B. Isoleucine inhibits the conversion of intermediate Y to intermediate Z.
C. Threonine inhibits threonine deaminase activity.
D. Isoleucine inhibits threonine deaminase activity
▶️Answer/Explanation
Ans: D