Biology: Concepts and Applications (MindTap Course List)
10th Edition
ISBN: 9781305967335
Author: Cecie Starr, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Chapter 7, Problem 11SA
Summary Introduction
To determine:
The correct sequence in which the steps of aerobic respiration occur.
Introduction:
The process that needs oxygen to form energy is termed as aerobic respiration. However, the process that takes place in the absence of oxygen is termed as anaerobic respiration. The aim of these two processes is to provide energy to the cells.
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During strenuous exercise, the NADH formed in the glyceraldehyde 3-phosphate dehydrogenase reaction in skeletal muscle must be reoxidized to NAD+ if glycolysis is to continue. The most important reaction involved in the reoxidation of NADH is:
a. dihydroxyacetone phosphate → glycerol 3-phosphate
b. glucose 6-phosphate → fructose 6-phosphate
c. isocitrate → α-ketoglutarate
d. oxaloacetate → malate
e. pyruvate → lactate
Which of the following is the third step of Citric Acid Cycle?
Select one:
a.
Succinyl-CoA becomes Succinate and forms one ATP molecule and Coenzyme A-SH
b.
Pyruvate is decarboxylated to become acetyl-CoA producing NADH and Carbon dioxide
c.
Isocitrate and then decarboxylated and oxidized to produce alpha-ketoglutarate, Carbon dioxide and NADH
d.
alpha-ketoglutarate is oxidized and decarboxylated to produce Succinyl-CoA, Carbon dioxide and NADH
e.
Succinate is oxidized to become fumarate forming FADH2
f.
Oxaloacetate combines with the acetyl from acetyl-CoA to produce Citric acid(citrate)
g.
Citrate is rearranged to become Isocitrate
h.
Malate is oxidized to become oxaloacetate forming NADH
i.
Fumarate is combined with water to become Malate
The oxidative phase of the pentose phosphate pathway produces which of the following (note - select all that apply)?
A.
ATP
B.
Glucose-6-phosphate
C.
NADPH
D.
Ribose-5-phosphate
Chapter 7 Solutions
Biology: Concepts and Applications (MindTap Course List)
Ch. 7 - Is the following statement true or false? Unlike...Ch. 7 - Glycolysis starts and ends in the ________. a....Ch. 7 - Which of the following pathways requires molecular...Ch. 7 - Which molecule does not form during glycolysis? a....Ch. 7 - In eukaryotes, the final reactions of aerobic...Ch. 7 - Prob. 6SACh. 7 - After the citric acid cycle reactions run...Ch. 7 - Prob. 8SACh. 7 - Prob. 9SACh. 7 - Prob. 10SA
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