3. Follow the two carbon atoms that enter the citric acid cycle (C₂). Are the two CO₂ molecules given off in one turn of the citric acid cycle composed of the same 2 carbon atoms that entered the cycle? NADE+H+ NAD+ H HỌ–C–COO H₂C-COO FADEL 0-C-COO H₂C-COO- Oxaloacetate Malate HC-COO -OOC-CH Fumarate FAD Succinate H₂C-COO H₂C-COO CH, COS—CoA Acetyl coenzyme A GTP CoA GDP CoA H₂C-COO- HỌ–C–COO- H₂C-COO- Citrate Isocitrate CO₂ Succinyl COA H₂C-COO- H₂C-COO™ HC-COO- HỌ–C–COO CO₂ a-Ketoglutarate ₂ H₂C CoA H₂C-CO-S-CoA H I H₂C-COO 0-C-COO™ 4 NAD NADE + H+ NAD+ NADE+H+

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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3. Follow the two carbon atoms that enter the citric acid cycle (C₂). Are the two CO₂ molecules given off in
one turn of the citric acid cycle composed of the same 2 carbon atoms that entered the cycle?
NADE + H+
NAD+
H
HỌ—C–COO
H₂C-COO-
FADE₂
7
0-C-COO
Malate
HC-COO-
FAD
-0OC-CH Fumarate
H₂C-COO-
Oxaloacetate
Succinate
H₂C-COO
H₂C-COO
CH, CO–S-CoA
Acetyl coenzyme A
GTP
COA
GDP
CoA
H₂C-COO-
HỌ–C–COO-
H₂C-COO
Citrate
Isocitrate
CO₂
Succinyl COA
H₂C-COO-
CO₂
a-Ketoglutarate
CoA
HO–C—COO-
H
H₂C-COO-
HC-COO-
H₂C-CO-S-CoA
H₂C-COO-
H₂C
0-C-COO-
NAD+
NADE + H+
NAD+
NADH + H+
Transcribed Image Text:3. Follow the two carbon atoms that enter the citric acid cycle (C₂). Are the two CO₂ molecules given off in one turn of the citric acid cycle composed of the same 2 carbon atoms that entered the cycle? NADE + H+ NAD+ H HỌ—C–COO H₂C-COO- FADE₂ 7 0-C-COO Malate HC-COO- FAD -0OC-CH Fumarate H₂C-COO- Oxaloacetate Succinate H₂C-COO H₂C-COO CH, CO–S-CoA Acetyl coenzyme A GTP COA GDP CoA H₂C-COO- HỌ–C–COO- H₂C-COO Citrate Isocitrate CO₂ Succinyl COA H₂C-COO- CO₂ a-Ketoglutarate CoA HO–C—COO- H H₂C-COO- HC-COO- H₂C-CO-S-CoA H₂C-COO- H₂C 0-C-COO- NAD+ NADE + H+ NAD+ NADH + H+
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