CAMPBELL'S BIOLOGY 12E PERUSALL
CAMPBELL'S BIOLOGY 12E PERUSALL
12th Edition
ISBN: 9780135858080
Author: Urry
Publisher: PERUSALL
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Chapter 9, Problem 6TYU

When electrons flow along the electron transport chains of mitochondria, which of the following changes occurs?

(A) The pH of the matrix increases.

(B) ATP synthase pumps protons by active transport.

(C) The electrons gain free energy.

(D) NAD+ is oxidized .

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When electrons flow along the electron transport chains ofmitochondria, which of the following changes occurs?(A) The pH of the matrix increases.(B) ATP synthase pumps protons by active transport.(C) The electrons gain free energy.(D) NAD+is oxidized.
In mitochondria, exergonic redox reactions(A) are the source of energy driving prokaryotic ATP synthesis.(B) provide the energy that establishes the proton gradient.(C) reduce carbon atoms to carbon dioxide.(D) are coupled via phosphorylated intermediatesto endergonic processes.
Figure 4.15 Cyanide inhibits cytochrome c oxidase, a component of the electron transport chain. If cyanide poisoning occurs, would you expect the pH of the intermembrane space to increase or decrease? What affect would cyanide have on ATP synthesis?

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