Answered: What is the reason that amino acid…

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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What is the reason that amino acid degradation spikes approximately 24 hours after starting a fast?

(A) The brain adapts to using ketone bodies, and amino acids serve as the primary precursors for ketone bodies.
(B) Red blood cells begin using amino acids to drive their citric acid cycle.
(C) Amino acids are broken down and used to replenish glycogen.

(D) The liver needs to make glucose for brain and RBCs, and amino acids provide the carbon skeleton for gluconeogenesis.
(E) The ammonia released from amino acid breakdown is a substrate for b-oxidation, which increases during prolonged fasting.

Definition Definition Organic compounds that have a carbonyl group, C = O, as their functional group. The carbonyl group in ketones is placed somewhere in the middle of the molecular structure, which means, the C=O is attached to two alkyl groups or benzene rings. Just like all other homologous series, the naming of ketones is done using a common suffix “-one”. The general molecular formula is C n H 2n O. Functional group of a ketone

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