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4 June, 09:47

An ion must cross the cell membrane through active transport instead of passive when the ion is ...

a. negatively charged

b. carried across by a protein

c. going against the concentrate ingredient

d. to small to move independently

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Answers (1)
  1. 4 June, 13:37
    0
    Going against the concentration gradient requires energy therefore this would require active transport.
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