Cellular Transport

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What is Cellular Transport?

Back

The process by which substances move in and out of cells to maintain homeostasis.

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What is Facilitated Diffusion?

Back

A type of passive transport that uses protein channels to help move molecules across the cell membrane without energy.

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What is Active Transport?

Back

The movement of molecules against their concentration gradient, requiring energy (ATP).

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What is Passive Transport?

Back

The movement of molecules from an area of high concentration to an area of low concentration without the use of energy.

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What is Osmosis?

Back

The diffusion of water across a selectively permeable membrane.

Front

What happens to a cell in a hypertonic solution?

Back

Water moves out of the cell, causing it to shrink.

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What happens to a cell in a hypotonic solution?

Back

Water moves into the cell, causing it to swell and potentially burst.

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What is Endocytosis?

Back

The process by which cells take in substances by engulfing them in a vesicle.

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What is Exocytosis?

Back

The process by which cells expel substances by vesicles fusing with the cell membrane.

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What is a Concentration Gradient?

Back

A difference in the concentration of a substance across a space or membrane.