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nightverin nightverin
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Posts: 719
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6 years ago
Which of the following does NOT directly affect the rate of diffusion of a substance across a membrane?
 a. concentration gradient
  b. cellular volume
  c. permeability of the membrane to the diffusing substance
  d. surface area across which diffusion is taking place
  e. molecular weight of the diffusing substance
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6 years ago
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