How would you compare and contrast diffusion and active transport?

Answer 1

Diffusion: The process by which a solute moves from a region of high concentration to one of low concentration without requiring energy from the cell.

Active Transport: Solute moving from a high-concentration region to a low-concentration region; however, this process requires energy expenditure on the part of the cell since large molecules must be physically pumped or transported across the membrane.

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Answer 2

Elias Aboujaoude

Diffusion is the passive movement of particles from an area of high concentration to low concentration, requiring no energy. Active transport is the active movement of particles against the concentration gradient, requiring energy.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.