shuptisaha07
shuptisaha07 shuptisaha07
  • 14-11-2019
  • Biology
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how can materials exit a cell by active transport

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2richty
2richty 2richty
  • 14-11-2019

Answer: Some substances pass through small holes in the surface cell membrane. This is called diffusion and does not require the cell to expend energy. Oxygen gets into a cell and carbon dioxide (the product of respiration reactions) leaves it this way. ... small particles (ions or molecules) diffuse more quickly than large ones.

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