Cell Transport

Front

What is a Hypotonic Solution?

Back

A solution that has a lower concentration of solutes compared to another solution, leading to water moving into the cell, causing it to swell.

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What is Passive Transport?

Back

The movement of materials across a cell membrane without the use of energy, typically from an area of high concentration to an area of low concentration.

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What is Facilitated Diffusion?

Back

The process of passive transport of molecules across a biological membrane via specific transmembrane integral proteins.

Front

What is Active Transport?

Back

The movement of molecules against their concentration gradient, requiring energy, usually in the form of ATP.

Front

What is a Hypertonic Solution?

Back

A solution that has a higher concentration of solutes compared to another solution, causing water to move out of the cell, leading to cell shrinkage.

Front

What is Isotonic Solution?

Back

A solution that has the same concentration of solutes as another solution, resulting in no net movement of water into or out of the cell.

Front

What is Osmosis?

Back

The diffusion of water across a selectively permeable membrane from an area of low solute concentration to an area of high solute concentration.

Front

What is the concentration gradient?

Back

The difference in the concentration of a substance across a space, which drives the movement of substances during diffusion.

Front

What role do protein channels play in cell transport?

Back

Protein channels facilitate the movement of specific molecules across the cell membrane, often during facilitated diffusion.

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What is the difference between simple diffusion and facilitated diffusion?

Back

Simple diffusion occurs directly through the membrane, while facilitated diffusion requires specific protein channels to assist the movement of molecules.