Cell Transport

Front

What is Passive Transport?

Back

Passive Transport is the movement of solutes across a cell membrane without the use of energy, moving with the concentration gradient.

Front

What is Active Transport?

Back

Active Transport is the movement of solutes across a cell membrane against the concentration gradient, requiring energy.

Front

What is Osmosis?

Back

Osmosis is the passive transport of water molecules across a selectively permeable membrane from an area of low solute concentration to an area of high solute concentration.

Front

What is Endocytosis?

Back

Endocytosis is the process by which cells take in substances by engulfing them in a membrane.

Front

What is Exocytosis?

Back

Exocytosis is the process by which cells expel substances by vesicles fusing with the cell membrane.

Front

Define Concentration Gradient.

Back

A concentration gradient is the difference in the concentration of a substance across a space or membrane.

Front

What is the role of energy in Active Transport?

Back

Energy is required in Active Transport to move substances against their concentration gradient.

Front

What is the difference between Passive and Active Transport?

Back

Passive Transport does not require energy and moves substances with the concentration gradient, while Active Transport requires energy and moves substances against the concentration gradient.

Front

What is facilitated diffusion?

Back

Facilitated diffusion is a type of passive transport that uses transport proteins to help move substances across the cell membrane.

Front

What are transport proteins?

Back

Transport proteins are proteins that assist in the movement of substances across a cell membrane.