Which molecule shuttles acetyl units from the mitochondria to the cytosol for fatty acid synthesis?

Answer and explanation

Correct answer: D. Citrate

  1. Step 1: Citrate leaves the mitochondrion and is cleaved to acetyl-CoA in the cytosol. Answer: Citrate. Why not the others: Pyruvate enters the mitochondrion and oxaloacetate cannot cross the inner membrane.

Practise more Biochemistry and Molecular Biology.

Free questions with an explanation for every one, and full timed MCAT (Medical College Admission Test) mock tests.