Active and passive transport are cellular processes that involve the transport of substances inside and outside the cells.
- Active and passive transport help the cell to regulate the uptake and removal of materials (Option D is correct).
- Passive transport is a type of transport that does not involve an energy input to transport substances in favor of a concentration gradient.
- There are four main classes of passive transport:
- filtration
- osmosis
- simple diffusion
- facilitated diffusion
- Active transport is a type of transport that requires energy to move substances against a concentration gradient.
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