Cell Transport

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What is Cell Transport?

Back

The process by which substances move in and out of cells, essential for maintaining homeostasis.

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What is Active Transport?

Back

The movement of substances across a cell membrane that requires energy, usually against the concentration gradient.

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What is Passive Transport?

Back

The movement of substances across a cell membrane without the use of energy, typically down the concentration gradient.

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What is Diffusion?

Back

The process by which molecules spread from areas of high concentration to areas of low concentration.

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What is Osmosis?

Back

The diffusion of water molecules through a selectively permeable membrane.

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What is Facilitated Diffusion?

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A type of passive transport that uses channel proteins to help move substances across the cell membrane without energy.

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What is Selective Permeability?

Back

The ability of the cell membrane to allow some substances to pass through while preventing others.

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What role does the Cell Membrane play in Homeostasis?

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It controls what substances may enter or leave the cell, helping to maintain a stable internal environment.

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What is the Concentration Gradient?

Back

The difference in the concentration of a substance across a space, which drives diffusion.

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What is Endocytosis?

Back

The process by which a cell engulfs material from the outside environment, bringing it into the cell.