Question

The beta oxidation pathway degrades activated fatty acids (acyl-CoA) to acetyl-CoA, which then enters the citric acid cycle. Additional enzymes are required to oxidize unsaturated, odd-chain, long-chain, and branched fatty acids.

Which of the following statements are true?

a.A 14-carbon monounsaturated fatty acid with cis configuration yields more ATP than a 14-carbon saturated fatty acid.
b.Enoyl-CoA isomerase, an enzyme that converts cis double bonds to trans double bonds in fatty acid metabolism, bypasses a step that reduces Q, resulting in a higher ATP yield.
c.Even-chain saturated fatty acids are oxidized to acetyl-CoA in the beta oxidation pathway.
d.Complete catabolism of the three-carbon remnant of a 15-carbon fatty acid requires some citric acid cycle enzymes.
e.Trans double bonds in unsaturated fatty acids are not recognized by beta oxidation enzymes.
f.The final round of beta oxidation for a 13-carbon saturated fatty acid yields acetyl-CoA and propionyl-CoA, a three-carbon fragment.

Answer 1

b) Enoyl CoA isomerase an enzyme that converts cis double bonds to trans double bonds in fatty acid metabolism,bypasses a step that reduces Q,resulting in the higher ATP yield.

c) Even chain fatty acids are oxidized to acetyl CoA in the beta oxidation pathway.

f) The final round of beta oxidation for a 13 carbon saturated fatty acid yields acetyl CoA and propionyl CoA, a three carbon fragment

Step-by-step explanation:

Beta Oxidation pathway is a pathway that shows the process whereby molecules of fatty acids are broken down into smaller units that undergoes or passes through the process of oxidation in other to produce energy. Beta Oxidation Pathway takes place in the cytosol of prokaryotic organisms or in the mitochondria of eukaryotic organisms.

The end product of Beta Oxidation is Acetyl-CoA and Propionyl-CoA, a three-carbon fragment.