The voltage across a membrane is called the _____

A) chemical gradient
B) membrane potential
C) osmotic potential
D) electrochemical gradient


B

Biology & Microbiology

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In what way(s) are mycelia and fruiting bodies similar?

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A dye often used for its ease and sensitivity to visualize nucleic acid after agarose gel electrophoresis is

A. nigrosin. B. malachite green. C. gold oxide. D. ethidium bromide.

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Approximately when did the earth's crust solidify?

A. 8 billion years ago B. 1 billion years ago C. 4 billion years ago D. 4 million years ago

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In adaptive immune responses, which of the

following is NOT capable of acting as an antigen-presenting cell?

a. T cell b. macrophage c. dendritic cell d. B cell e. all of these are capable

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