Passive Transport

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What is passive transport?

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Passive transport is the movement of substances across a cell membrane without the use of energy, relying on concentration gradients.

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What is osmosis?

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Osmosis is the movement of water across a selectively permeable membrane from an area of low solute concentration to an area of high solute concentration.

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What is diffusion?

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Diffusion is the process by which molecules spread from areas of high concentration to areas of low concentration.

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What is facilitated diffusion?

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Facilitated diffusion is a type of passive transport that uses transport proteins to help move substances across a cell membrane.

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What is a concentration gradient?

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A concentration gradient is the difference in the concentration of a substance across a space.

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What happens to a cell in a hypotonic solution?

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In a hypotonic solution, water moves into the cell, causing it to swell and potentially burst.

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What happens to a cell in a hypertonic solution?

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In a hypertonic solution, water moves out of the cell, causing it to shrink.

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What is an example of osmosis?

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An example of osmosis is the absorption of water by plant roots.

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What is an example of diffusion?

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An example of diffusion is the spreading of perfume in a room.

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What is an example of facilitated diffusion?

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An example of facilitated diffusion is the transport of glucose into cells.