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Home Q & A Board Biology-Related Homework Help Cell Biology
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smmiller223 smmiller223
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11 years ago
How does active transport differ from simple diffusion?
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#1
11 years ago
Diffusion passive transfer of a substance across a semi-permeable membrane from an area of high concentration to an area of lower concentration.

Active transport is kind of the opposite to this. It is the transfer of a substance across a membrane which is against the diffusion gradient (so from low to high concentration) and therefore requires energy from the cell.
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#2
11 years ago
Think about it this way

Active- against the flow of a river

regular diffusion- with the flow of a river
wrote...
#3
11 years ago
Active transport is the transport of material with the use of energy (ATP)

while

Diffusion is the transfer of material from an area of high concentration to an area of lower concentration in the absents of energy (ATP)
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