As ATP moves from the matrix of the mitochondrion to the cytoplasm of a cell, how many membranes will it pass?

A. four
B. two
C. one
D. three


Answer: B

Biology & Microbiology

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The final step in the development of eukaryotic cells was likely ____

a. duplication of function in the endosymbiont and host cell b. transfer of genes and function from the endosymbiont to the host cell c. circularization of DNA d. formation of membrane-bound organelles

e. ingestion of photosynthetic bacteria

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Slime molds move about in a way similar to

a. water molds. b. fungi. c. amoebas. d. dinoflagellates. e. ciliates.

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Parapatric speciation would be expected to occur most often

a. in the same homeland. b. near a common border between two populations. c. within a group of interbreeding populations. d. across obvious geographical barriers. e. by divergence from a common interbreeding population.

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The key characteristic of the herpes family of viruses is

A. their ability to transform normal cells into cancer cells. B. their propensity to destroy bone marrow. C. their ability to cause organ death. D. their ability to stay in host cells without causing symptoms.

Biology & Microbiology