Biology: The Unity and Diversity of Life (Looseleaf)
15th Edition
ISBN: 9781337408417
Author: STARR
Publisher: CENGAGE L
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Chapter 7, Problem 12SQ
Summary Introduction
Introduction:
Fermentation reactions do not require the oxygen as an electron acceptor, but the final electron acceptor is an organic molecule. It occurs under the anaerobic conditions. Fermentation reaction occurs in the cytoplasm of the cell. Aerobic respiration requires oxygen. The final stage of the aerobic respiration is the electron transfer phosphorylation that occurs in mitochondria. The coenzymes reduced in the earlier reactions deliver electrons and hydrogen ions to electron transfer chains in the inner mitochondrial membrane. The flow of the hydrogen ions through these proteins drives the ATP synthesis. Oxygen accepts the electrons at the end of the electron transfer chains and combines with the hydrogen ions, to form water.
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The metabolic pathway below is used for the production of the purine nucleotides adenosine monophosphate (AMP) and guanosine monophosphate (GMP) in eukaryotic cells. Assume each arrow represents a reaction catalyzed by a different enzyme. Using the principles of feedback inhibition, propose a regulatory scheme for this pathway that ensures an adequate supply of both AMP and GMP, and prevents the buildup of Intermediates A through G when supplies of both AMP and GMP are adequate.
QUESTION 27
Label the structures marked A, B, C and explain the role of structure A.
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Chapter 7 Solutions
Biology: The Unity and Diversity of Life (Looseleaf)
Ch. 7 - Prob. 1DAACh. 7 - Prob. 2DAACh. 7 - Prob. 3DAACh. 7 - Is the following statement true or false? Unlike...Ch. 7 - Glycolysis starts and ends in the ___. a. nucleus...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. 6SQCh. 7 - Prob. 7SQ
Ch. 7 - Most of the energy that aerobic respiration...Ch. 7 - Put the following pathways in the order they occur...Ch. 7 - Which of the following is not produced by an...Ch. 7 - Prob. 11SQCh. 7 - Prob. 12SQCh. 7 - Which of the following molecules can be oxidized...Ch. 7 - Prob. 14SQCh. 7 - Match the term with the best description. _____...Ch. 7 - Prob. 1CTCh. 7 - Prob. 2CT
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