Textbook Question
Reactions involved in the light-independent reactions of photosynthesis constitute the _______.
a. Citric acid cycle
b. Entner-Doudoroff pathway
c. Calvin-Benson cycle
d. pentose phosphate pathway
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Ch. 5 - Microbial Metabolism
Bauman6th EditionMicrobiology with Diseases by TaxonomyISBN: 9780134832302
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Table of contents
- Ch. 1 - A Brief History of Microbiology31
- Ch. 2 - The Chemistry of Microbiology28
- Ch. 3 - Cell Structure and Function39
- Ch. 4 - Microscopy, Staining, and Classification25
- Ch. 5 - Microbial Metabolism51
- Ch. 6 - Microbial Nutrition and Growth37
- Ch. 7 - Microbial Genetics51
- Ch. 8 - Recombinant DNA Technology21
- Ch. 9 - Controlling Microbial Growth in the Environment36
- Ch. 10 - Controlling Microbial Growth in the Body: Antimicrobial Drugs21
- Ch. 11 - Characterizing and Classifying Prokaryotes29
- Ch. 12 - Characterizing and Classifying Eukaryotes34
- Ch. 13 - Characterizing and Classifying Viruses, Viroids, and Prions23
- Ch. 14 - Infection, Infectious Diseases, and Epidemiology35
- Ch. 15 - Innate Immunity34
- Ch. 16 - Adaptive Immunity21
- Ch. 17 - Immunization and Immune Testing29
- Ch. 18 - Immune Disorders22
- Ch. 19 - Pathogenic Gram-Positive Bacteria25
- Ch. 20 - Pathogenic Gram-Negative Cocci and Bacilli28
- Ch. 21 - Rickettsias, Chlamydias, Spirochetes, and Vibrios25
- Ch. 22 - Pathogenic Fungi47
- Ch. 23 - Parasitic Protozoa, Helminths, and Arthropod Vectors44
- Ch. 24 - Pathogenic DNA Viruses23
- Ch. 25 - Pathogenic RNA Viruses30
- Ch. 26 - Applied and Industrial Microbiology29
- Ch. 27 - Microbial Ecology and Microbiomes22
Bauman6th EditionMicrobiology with Diseases by TaxonomyISBN: 9780134832302Not the one you use?Change textbook
Chapter 5, Problem 16
Under ideal conditions, the complete aerobic oxidation of one molecule of glucose by a bacterium allows a net gain of how many ATP molecules?
a. 2
b. 4
c. 38
d. 0
Verified step by step guidance1
Understand that the complete aerobic oxidation of glucose involves glycolysis, the Krebs cycle (citric acid cycle), and the electron transport chain.
Recall that glycolysis produces a net gain of 2 ATP molecules per glucose molecule by substrate-level phosphorylation.
Recognize that the Krebs cycle itself produces a small amount of ATP (or GTP), typically 2 ATP per glucose molecule, also by substrate-level phosphorylation.
Know that the majority of ATP is generated during the electron transport chain through oxidative phosphorylation, where NADH and FADH2 produced in earlier steps donate electrons to generate a proton gradient used to synthesize ATP.
Sum the ATP produced from glycolysis, Krebs cycle, and oxidative phosphorylation to find the total net ATP yield from one molecule of glucose under ideal aerobic conditions, which is commonly around 38 ATP molecules.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Aerobic Respiration
Aerobic respiration is a metabolic process where glucose is completely oxidized in the presence of oxygen, producing carbon dioxide, water, and energy. This process involves glycolysis, the Krebs cycle, and the electron transport chain, leading to efficient ATP production.
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Introduction to Aerobic Cellular Respiration
ATP Yield from Glucose Oxidation
The complete aerobic oxidation of one glucose molecule typically yields about 38 ATP molecules in prokaryotes. This total includes ATP generated during glycolysis, the Krebs cycle, and oxidative phosphorylation via the electron transport chain.
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Role of Oxygen in Energy Production
Oxygen acts as the final electron acceptor in the electron transport chain during aerobic respiration. Its presence allows for maximum ATP generation by enabling the full oxidation of glucose, unlike anaerobic processes which yield less ATP.
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Related Practice
Textbook Question
The glycolysis pathway is basically _______.
a. catabolic
b. amphibolic
c. anabolic
d. cyclical
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Textbook Question
Which of the following statements about the Entner-Doudoroff pathway is false?
a. It is a series of reactions that synthesizes glucose.
b. Its products are sometimes used to determine the presence of Pseudomonas.
c. It is a pathway of chemical reactions that catabolizes glucose.
d. It is an alternative pathway to glycolysis.
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Textbook Question
Under ideal conditions, the fermentation of one glucose molecule by a bacterium allows a net gain of how many ATP molecules?
a. 2
b. 4
c. 38
d. 0
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Textbook Question
Most oxidation reactions in bacteria involve the _______.
a. Removal of hydrogen ions and electrons
b. Removal of oxygen
c. Addition of hydrogen ions and electrons
d. Addition of hydrogen ions
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Textbook Question
A laboratory scientist notices that a certain bacterium does not utilize lactose when glucose is available in its environment. Describe a cellular regulatory mechanism that would explain this observation.
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