Cell Transport - Obtaining and Removing Materials

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What is Passive Transport?

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Passive Transport is the movement of substances through a cell membrane from areas of high concentration to areas of low concentration without using the cell’s energy.

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What is Active Transport?

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Active Transport is the movement of substances against their concentration gradient, from areas of low concentration to areas of high concentration, using the cell's energy.

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What is Osmosis?

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Osmosis is the diffusion of water molecules through 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 the process of transporting substances across a cell membrane with the help of transport proteins, without using energy.

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What is Endocytosis?

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Endocytosis is the process by which a cell takes in materials by engulfing them in a vesicle.

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What is Exocytosis?

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Exocytosis is the process during which a cell's vesicles join with the cell membrane, releasing their contents outside the cell.

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What is a Channel Protein?

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A Channel Protein is a type of transport protein that forms channels or pores in the cell membrane, allowing specific molecules to pass through.

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What is a Carrier Protein?

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A Carrier Protein is a type of transport protein that carries large molecules, like glucose, through the 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 between two areas.