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Biology, 25.08.2019 16:50 dyhji

Which is a form of active transport?
a)proteins enter and exit the cell freely.
b)proteins create openings on another side of the cell membrane.
c)proteins open up channels in the cell membrane.
d)proteins push molecules through the cell membrane.

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Which is a form of active transport?
a)proteins enter and exit the cell freely.
b)prot...

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