Cell Transport

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What is Passive Transport?

Back

A type of transport that moves substances across a cell membrane without the use of energy, typically from an area of higher concentration to an area of lower concentration.

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What is Active Transport?

Back

A type of transport that requires energy to move substances against their concentration gradient, from an area of lower concentration to an area of higher concentration.

Front

What is Osmosis?

Back

The movement of water molecules through a selectively permeable membrane from an area of lower solute concentration to an area of higher solute concentration.

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What is Diffusion?

Back

The process by which particles spread out from an area of high concentration to an area of low concentration until they are evenly distributed.

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What is Equilibrium in the context of diffusion?

Back

A state where the concentration of a substance is equal throughout a space, meaning there is no net movement of particles.

Front

What is the Cell Membrane?

Back

A biological membrane that separates and protects the interior of the cell from the external environment, controlling the movement of substances in and out.

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What is the role of the Cell Wall?

Back

A rigid outer layer found in plant cells that provides structure and support, but is not involved in transport.

Front

What is Exocytosis?

Back

A process by which a cell expels materials in vesicles that fuse with the cell membrane, releasing their contents outside the cell.

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What is Endocytosis?

Back

A process by which a cell takes in materials by engulfing them in a vesicle formed from the cell membrane.

Front

What happens to a plant cell in a hypertonic solution?

Back

The cell loses water through osmosis, causing it to shrivel and the cell membrane to pull away from the cell wall.