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What role does malonyl CoA play in fatty acid biosynthesis?A) It inhibits the activity of Acetyl-CoA Carboxylase (ACC).B) It serves as a substrate for Acyl Carrier Protein (ACP).C) It activates fatty acid synthase enzymes.D) It promotes the formation of ketone bodies.

Question

What role does malonyl CoA play in fatty acid biosynthesis?A) It inhibits the activity of Acetyl-CoA Carboxylase (ACC).B) It serves as a substrate for Acyl Carrier Protein (ACP).C) It activates fatty acid synthase enzymes.D) It promotes the formation of ketone bodies.

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Solution

Malonyl CoA plays a crucial role in fatty acid biosynthesis. It serves as a substrate for Acyl Carrier Protein (ACP). In the process of fatty acid synthesis, malonyl CoA donates a two-carbon unit to the growing fatty acid chain. This is facilitated by the enzyme fatty acid synthase. Therefore, the correct answer is B) It serves as a substrate for Acyl Carrier Protein (ACP).

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