Biology: Cell Transport

Front

What is Osmosis?

Back

The movement 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 a Hypotonic solution?

Back

A solution that has a lower concentration of solutes compared to the inside of a cell, causing the cell to swell and potentially burst.

Front

What is Endocytosis?

Back

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

Front

What is a Hypertonic solution?

Back

A solution that has a higher concentration of solutes compared to the inside of a cell, causing the cell to shrink.

Front

What is Facilitated Diffusion?

Back

The process of passive transport of molecules across a cell membrane via a specific carrier protein.

Front

What is Passive Transport?

Back

The movement of substances across a cell membrane without the use of energy, typically along the concentration gradient.

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What is Active Transport?

Back

The movement of molecules across a cell membrane against their concentration gradient, requiring energy (ATP).

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What is Diffusion?

Back

The process by which molecules spread from areas of high concentration to areas of low concentration.

Front

What is Homeostasis?

Back

The ability of a cell or organism to maintain a stable internal environment despite changes in external conditions.

Front

What role do carrier proteins play in cell transport?

Back

Carrier proteins assist in the movement of substances across the cell membrane, particularly in facilitated diffusion and active transport.