Can you give me the reason with answer please thank you

22. Which molecule enters the citric acid cycle?

a) glucose

b) pyruvate

c) ATP

d) acetyl-CoA

e) None of the answers are correct.

24. Which of the following enzymes is not used during the citric acid cycle? a) aconitase

b) isocitrate dehydrogenase

c) fumarase

d) citrate synthase

e) ATP synthase

25. Which of the following description of ATP synthase is not correct?

I. It is a membrane integral protein.

II. It is found in the mitochondria.

III. It is an active H+ transporter.

IV. It converts ADP to ATP.

V. It utilizes NADH and FADH2 as a substrate.

a) I only

b) III only

c) I and III only

d) III and V only

e) I, III, and V only