Cell Transport

Front

What is Active Transport?

Back

The movement of molecules from an area of low concentration to an area of high concentration, requiring energy (ATP).

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What is Passive Transport?

Back

The movement of molecules from an area of high concentration to an area of low concentration without the use of energy.

Front

What is the role of ATP in Active Transport?

Back

ATP provides the energy needed for molecules to move against their concentration gradient.

Front

What is Endocytosis?

Back

A process by which cells take in substances by engulfing them in a membrane.

Front

What is Exocytosis?

Back

A process by which cells expel materials in vesicles that fuse with the cell membrane.

Front

What is a Concentration Gradient?

Back

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

Front

What is a Protein Channel?

Back

A protein that allows the transport of specific substances across a cell membrane.

Front

What is Osmosis?

Back

The diffusion of water across a selectively permeable membrane.

Front

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.

Front

What is facilitated diffusion?

Back

A type of passive transport that uses protein channels to help move substances across the membrane.