In what way are the transition step (oxidation of pyruvate) and step 4 of the citric acid cycle (oxidation of α-ketoglutarate) the same? A.Both are reversibly activated by product accumulation. B.Both produces reducing power as well as one fully oxidized carbon in the form of CO2. C.Both are catalyzed by NAD+/NADP+ dehydrogenases. D.Both occur in the mitochondrial membranes of a eukaryotic cell. E.Both are characterized by the formation of an activated acetate and a reducing power.

A is incorrect Reason : Both are irreversible reactions and cannot be reversibly activated.

Answered: what way are the transition step…

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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Question

In what way are the transition step (oxidation of pyruvate) and step 4 of the citric acid cycle (oxidation of α-ketoglutarate) the same?

	A.	Both are reversibly activated by product accumulation.
	B.	Both produces reducing power as well as one fully oxidized carbon in the form of CO₂.
	C.	Both are catalyzed by NAD⁺/NADP⁺ dehydrogenases.
	D.	Both occur in the mitochondrial membranes of a eukaryotic cell.
	E.	Both are characterized by the formation of an activated acetate and a reducing power.