Identify the Krebs cycle enzyme that consumes a six-carbon substrate molecule, producing a six-carbon product molecule, but neither consumes nor produces NADH? a-ketoglutarate dehydrogenase isocitrate dehydrogenase succinyl CoA synthetase malate dehydrogenase aconitase

Identify the Krebs cycle enzyme that consumes a six-carbon substrate molecule, producing a six-carbon product molecule, but neither consumes nor produces NADH? a-ketoglutarate dehydrogenase isocitrate dehydrogenase succinyl CoA synthetase malate dehydrogenase aconitase

Biochemistry

6th Edition

ISBN:9781305577206

Author:Reginald H. Garrett, Charles M. Grisham

Publisher:Reginald H. Garrett, Charles M. Grisham

Chapter18: Glycolysis

Section: Chapter Questions

Problem 24P: Based on your knowledge of the structure of NAD+ and an assumption that coenzyme dissociation is the...

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Concept explainers

Metabolic pathways

Metabolism is defined as the group of life-supporting, enzyme-mediated chemical reactions in organisms. A metabolic pathway is a set of these chemical reactions that involve anabolism (synthesis of complex biomolecules) and catabolism (breakdown of biomolecules into small molecules) that occur inside a cell. Metabolites are the reacting substances, products, and intermediate substances of an enzymatic process that are altered by a series of chemical events catalyzed by enzymes.

Question

Identify the Krebs cycle enzyme that consumes a six-carbon substrate molecule, producing a six-carbon product molecule, but neither consumes nor produces NADH?

a-ketoglutarate dehydrogenase
isocitrate dehydrogenase
succinyl CoA synthetase
malate dehydrogenase
aconitase

Expert Solution

Introduction

Kreb's cycle or tricarboxylic acid cycle is a aerobic respiration process in which acetyl CoA is oxidized to release energy in it. NADH and FADH₂ produced during TCA cycle are taken inside mitochondria to obtain energy through oxidative phosphorylation.

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