A diagram of the reactions of the first cycle of fatty acid synthesis is shown b

Question

A diagram of the reactions of the first cycle of fatty acid synthesis is shown below Which of the following statements are true? Select all the true statements Each cycle lengthens the fatty add chain by three carbon atoms The growing fatty add chain is bound to an acyl carrier protein (ACP). Acetyl-SCoA is used to produce malonyl-SCoA One malonyl group is added to the growing fatty add chain with each cycle The reactions of lipogenesis include, but are not limited to, two reductions and a dehydration The first cycle of lipogenesis yields CO2, 1NAOP and an acyl group attached to ACP.

Explanation / Answer

Answer: 1) [False], they grow by factors of TWO carbon atoms. 2) [True], it must be mediated by this co-factor. 3) [True], this is catalyzed by MAP enzyme. 4) [True], this is how the chain grows. 5) [True], two reductions are NADPH to NADP+, and one dehydration is the loss of water. 6) [False], two NADPH are used to make two NADP+

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