Active Transport

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What is Active Transport?

Back

Active transport is the movement of molecules across a cell membrane from a region of lower concentration to a region of higher concentration, requiring energy in the form of ATP.

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What is Exocytosis?

Back

Exocytosis is a process where cells expel materials in vesicles that fuse with the cell membrane, releasing their contents outside the cell.

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What is Endocytosis?

Back

Endocytosis is the process by which cells engulf external substances, bringing them into the cell within vesicles.

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What is Facilitated Diffusion?

Back

Facilitated diffusion is a passive transport process that uses transport proteins to move molecules across the cell membrane without energy.

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What is the Concentration Gradient?

Back

The concentration gradient is the difference in concentration of a substance across a space, driving the movement of molecules.

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What is the role of ATP in Active Transport?

Back

ATP provides the energy required for active transport processes to move substances against their concentration gradient.

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What is an Active Transport Pump?

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An active transport pump is a protein that uses energy to transport ions or molecules across a membrane against their concentration gradient.

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What is Osmosis?

Back

Osmosis is the passive 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 Passive Transport?

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Passive transport is the movement of substances across a cell membrane without the use of energy, following the concentration gradient.

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What is the difference between Active and Passive Transport?

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Active transport requires energy to move substances against their concentration gradient, while passive transport does not require energy and moves substances along the gradient.