Nester's Microbiology: A Human Perspective
9th Edition
ISBN: 9781259709999
Author: Denise G. Anderson Lecturer, Sarah Salm, Deborah Allen
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 6, Problem 8MC
In the process of oxidative phosphorylation, the energy of a proton motive force is used to generate
a) NADH.
b) ADP.
c) ethanol.
d) ATP.
e) glucose.
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Students have asked these similar questions
The function of NAD+ and FADH+ is:
A)To make sugar from carbon Dioxide
B)To pump hydrogen ions across a membrane
C)To capture and hold high energy electrons
D)To turn the rotor of ATP Synthase
E)To take low energy electrons from the electron transport chain
In the process of oxidative phosphorylation, the energy of a proton motive force is used to generatea) NADH.b) ADP.c) ethanol.d) ATP.e) glucose.
1)NADH is made from NAD+ by
a)An oxidation-reduction reaction
b)Oxidative phosphorylation
c)A proton gradient
d)A dehydration reaction
e)Substrate-level phosphorylation
2. The energy used to make ATP via substrate-level phosphorylation is from a(n)
a)Electron gradient
b)Reduction reaction
c)Phosphorylated molecule
d)ADP molecule
e) Protein gradient
3. Which of the following molecules, as written, is in its reduced form?
a)NADH
b)O2
c)NAD+
d)FAD
e)CO2
4. Cellulose is a good structural molecule because
a)The molecule is amphipathic, allow it to interact with water and nonpolar substances
b)The bonds between the monomers are difficult to break, increasing its stability
c)It is a mix of carbohydrate and protein, allowing it to form multiple types of bonds
Chapter 6 Solutions
Nester's Microbiology: A Human Perspective
Ch. 6 - Explain the difference between catabolism and...Ch. 6 - How does ATP serve as a carrier of free energy?Ch. 6 -
3. How do enzymes catalyze chemical reactions?
Ch. 6 - Explain how precursor molecules are involved in...Ch. 6 -
5. How do cells regulate enzyme activity?
Ch. 6 - Why do the electrons carried by FADH2 result in...Ch. 6 -
7. Name three food products produced with the aid...Ch. 6 - In photosynthesis, what is encompassed by the term...Ch. 6 - Unlike the cyanobacteria, the anoxygenic...Ch. 6 - What is the role of transamination in amino acid...
Ch. 6 - Which of these factors do does not affect enzyme...Ch. 6 - Which of the following statements is false?...Ch. 6 - Based on the name, NADH dehydrogenase is a) a...Ch. 6 - What is the end product of glycolysis? a) Glucose...Ch. 6 -
5. The central metabolic pathway(s) is/are
a)...Ch. 6 - Which of these pathways gives a cell the potential...Ch. 6 - In fermentation, the terminal electron acceptor is...Ch. 6 -
8. In the process of oxidative phosphorylation,...Ch. 6 - If a bacterium loses the ability to produce FADH2,...Ch. 6 - Degradation of fats as an energy source involves...Ch. 6 -
1. A worker in a cheese-making facility argues...Ch. 6 -
2. Scientists working with DNA in vitro often...Ch. 6 -
1. A student argued that aerobic and anaerobic...Ch. 6 - Chemolithotrophs near hydrothermal vents support a...
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- Proton motive force refers to A) the movement of protons across a membrane due to a proton gradient. B) the flow of electrons through an electron transport chain. C) the action of ATPase enzyme. D) oxidative phosphorylation. E) the oxidation of NADH2 and FADH2.arrow_forwardThe oxygen (O2) consumed during aerobic cellular respiration is involved directly in which process or event? A) the phosphorylation of ADP to form ATP B)accepting electrons at the end of the electron transport chain C)glycolysis D)the oxidation of pyruvate to acetyl-CoA E)the citric acid cycle 12.arrow_forwardOligomycin is a substance that prevents the ATP synthesis reaction in oxidative phosphorylation, and 2,4-dinitrophenol is an uncoupling agent. In the presence of oligomycin, what would be the effect of adding 2,4-dinitrophenol? A) O2 consumption will increase. B) Electron transfer will be blocked. C) Oxidative phosphorylation will occur. D) Production of water will decrease.arrow_forward
- Cyanide is a highly toxic molecule. It bonds to a cytochrome in the electron transport chain located in the mitochondria, rendering the electron transport chain useless. The ingestion of cyanide, therefore, results in death due to which of the following? a) Starvation, due to an inability to create glucose. b) Build up of lactic acid. c) Inability to take in oxygen through the lungs. d) Cellular death from lack of energy.arrow_forwardBased on the name, NADH dehydrogenase isa) a vitamin that oxidizes NADH.b) a vitamin that reduces NADH.c) a vitamin that produces NADH.d) an enzyme that oxidizes NADH.e) an enzyme that reduces NADH.arrow_forwardWhich of the following is the prosthetic group of NADH dehydrogenase? a) FAD b) FMN c) NADH d) NADPHarrow_forward
- An important reaction that must occur in both fermentation and aerobic cellular respiration is A) the reduction of NADH to NAD+. B) the reduction of FAD+ to FADH2. C) the oxidation of NADH to NAD+.arrow_forwardGlucose breakdown produces a few ATP directly, but many more are made by: a) Electron-powered pumping of hydrogen cations b) Electrochemical gradient released through an enzyme complex c) A rotating, multisubunit, transmembrane protein d) Protons flowing "downhill" through an ion channel e) All of the abovearrow_forwarda) What is the process by which cells generate ATP through a series of redox (chemical) reactions called? How many ATPs generated through this process from one Glucose molecule? b) What does cellular respiration accomplish for the cell? c) What happens to the NADH produced in glycolysis? Why does it need to get into the mitochondria? d) Write the role of O2 in cellular respiration. e) What happens to our body’s enzyme activity during fever? f) What is the difference between apo-enzyme and holo-enzyme? g) What is meant by the term specificity in relation to enzyme activity? h) If humans evolved from apes, why are there still apes? i) What are the risk factors of type 2 diabetes? j) Why was Lamarck wrong about giraffes?arrow_forward
- What are the different steps in oxidative phosphorylation? Which one is correct. a) The electron transport chain b) The investment phase c) ATP seemed d) The energy generation phase e) Glucolysis f) The fission phasearrow_forwardHow does the proton motive force lead to production of ATP? A) ATPase requires one proton to make one ATP. B) Protons must be pumped against a concentration gradient from outside of the cell into the cell to rotate the F0 subunit of ATPase for the F1 subunit to make ATP. C) Oxidative phosphorylation of ADP by ATP synthase requires protons as cofactors in the reaction. D) Translocation of three to four protons drives the F0 component of ATPase, which in turn phosphorylates one ADP into ATP.arrow_forwardIn aerobic respiration, the final electron acceptor is A) hydrogen. B) oxygen. C) water. D) ATP.arrow_forward
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