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To begin the synthesis of a new fatty acid, which of the following enzymes catalyzes theconnection of the proper acyl groups to fatty acid synthase?Group of answer choicesA) Acyl Carrier ProteinB) Beta Ketoacyl ACP SynthaseC) Acetyl CoA carboxylaseD) ThioesteraseE) None of the above

Question

To begin the synthesis of a new fatty acid, which of the following enzymes catalyzes theconnection of the proper acyl groups to fatty acid synthase?Group of answer choicesA) Acyl Carrier ProteinB) Beta Ketoacyl ACP SynthaseC) Acetyl CoA carboxylaseD) ThioesteraseE) None of the above

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Solution

The enzyme that catalyzes the connection of the proper acyl groups to fatty acid synthase at the beginning of a new fatty acid synthesis is Acetyl CoA carboxylase (C). This enzyme catalyzes the carboxylation of acetyl-CoA to malonyl-CoA, the first and rate-limiting step in the synthesis of fatty acids.

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Which molecule serves as the primer for fatty acid synthesis?A) Acetyl-CoAB) Malonyl-CoAC) PalmitateD) Acyl carrier protein (ACP)

The committed step in fatty acid synthesis is catalyzed byGroup of answer choicesMalonyl CoA synthaseAcetyl CoA carboxylaseFatty acid synthaseACP synthaseNone of the above

After three rounds of fatty acid synthase activity, what size is the fatty acyl intermediate?Group of answer choicesA) 4 carbons longB) 5 carbons longC) 8 carbons longD) 9 carbons longE) 10 carbons long

Fatty acids and some amino acids are converted directly into  _____________ for ATP production.Group of answer choicesNADHacetyl CoAFADH2glucosepyruvate

Which of the following lists the four steps of fatty acid synthesis in the correct order?Group of answer choicescondensation, reduction, dehydration, reductionreduction, reduction, dehydration, rehydrationcondensation, cleavage, reduction, reductionreduction, condensation, reduction, dehydration

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