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Which of the following statements about anaerobic respiration is FALSE?
It involves the reduction of an organic final electron acceptor.
What is the fate of pyruvic acid in an organism that uses aerobic respiration
It is converted into acetyl CoA.
Which of the following is the best definition of oxidative phosphorylation?
A proton gradient allows hydrogen ions to flow back into the cells through transmembrane protein channels, releasing energy that is used to generate ATP.
Which of the following statements about substrate-level phosphorylation is FALSE?
The oxidation of intermediate metabolic compounds releases energy that is used to generate
The advantage of the pentose phosphate pathway is that it produces all of the following EXCEPT
E) three ATP's.
Which of the following is the best definition of fermentation?
The partial oxidation of glucose with organic molecules serving as electron acceptors.
Which one of the following would you predict is an allosteric inhibitor of the Krebs cycle enzyme,
Assume you are growing bacteria on a lipid medium that started at pH 7. The action of bacterial
lipases should cause the pH of the medium
The pH of the medium will decrease.
Which of the following statements are true?
2-ATP is a common intermediate between catabolic and anabolic pathways.
4-Anaerobic organisms are capable of generating ATP via respiration.
5-ATP can be generated by the flow of protons across protein channels.
Microorganisms that catabolize sugars into ethanol and hydrogen gas would be categorized as
B) anaerobic respirers.
Which of the following statements regarding metabolism is FALSE?
Anabolic reactions are degradative.
An enzyme, citrate synthase, in the Krebs cycle is inhibited by ATP. This is an example of all of the
If a cell is starved for ATP, which of the following pathways would most likely be shut down?
Pentose Phosphate Pathway
Which of the following statements regarding the glycolysis pathway is FALSE?
One molecule of ATP is expanded.
A bacterial culture grown in a glucose-peptide medium causes the pH to increase.The bacteria are
Using the peptides.
Gallionella bacteria can get energy from the reaction Fe²⁺ → Fe³⁺. This reaction is an example of
The use of enzymes is necessary to increase the activation energy requirements of a chemical reaction.
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