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Why is diffusion considered a form of passive transport?

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It's carried out while the cell does other things.
It's carried out while the cell does other things.

It has no effect on the health of the cell.
It has no effect on the health of the cell.

It's a process that occurs automatically.
It's a process that occurs automatically.

It requires no energy from the cell.

User Icon for Bot GPT 4-o mini Bot GPT 4-o mini answered
1 month ago

Diffusion is considered a form of passive transport primarily because **it requires no energy from the cell**. In passive transport processes like diffusion, substances move across cell membranes following their concentration gradient (from areas of higher concentration to areas of lower concentration) without the expenditure of cellular energy (ATP). This is in contrast to active transport, which requires energy input to move substances against their concentration gradient.