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1) Active transport, a function of membranes?

1) Active transport, a function of membranes?

a) requires an input of energy.

c) moves amino acids and small ions across the membrane.

c) requires an input of energy and moves amino acids and small ions across the membrane.

d) None of these choices.


2) The fluid mosaic model proposes that


a) membranes can move like a fluid.

b) proteins are embedded into the cell membrane.

c) materials that are fluid move across a membrane.

d) the composition of membranes includes a mosaic fluid.

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