The net movement of molecules or ions from a low concentration to a higher concentration is called ____

a. active transport
b. facilitated diffusion
c. exocytosis
d. osmosis
e. diffusion


ANSWER: a

Biology & Microbiology

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In recombinant DNA technology, enzymes used to precisely cut DNA are called

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The concentration of a particular protein, X, in a normal human cell rises gradually from a low point, immediately after cell division, to a high point, just before cell division, and then drops sharply

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Wild animals are a natural reservoir for Clostridium tetani

Indicate whether the statement is true or false.

Biology & Microbiology