A concentration gradient is an example of

A. oxidation-reduction.
B. potential energy.
C. entropy.
D. hydrolysis.


Answer: B. potential energy.

Biology & Microbiology

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What would happen to a cell if it failed to complete meiosis II?

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Surgical removal of the pancreas would

A. prevent the production of chyme in the stomach. B. block the secretion of bile. C. eliminate the ability to store bile in the gallbladder. D. increase the acidity of the small intestine. E. All of these changes would be a result of pancreas removal.

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Which of the following is not one of the major transport systems of the inner mitochondrial membrane?

A) porin channel B) dicarboxylate carrier C) tricarboxylate carrier D) pyruvate carrier E) ATP-ADP carrier

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Plant cells ________

A) do not need chloroplasts because their mitochondria meet their energy needs B) have chloroplasts and mitochondria C) use carbon dioxide but do not use oxygen D) do not need mitochondria because their chloroplasts meet their energy needs

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