teresaromero teresaromero
  • 17-01-2017
  • Biology
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what is active transport across a cell membrane?

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SI4 SI4
  • 17-01-2017
active transport is moving without putting any energy forth
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msophiedavis msophiedavis
  • 17-01-2017
Molecules and ions move spontaneously down their concentration gradient
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