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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.

Front

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?

Back

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?

Back

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?

Back

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