Cell Transport

Front

What is endocytosis?

Back

A type of active transport where a cell takes in large amounts of nutrients or substances by engulfing them.

Front

What is the function of a phospholipid in a cell membrane?

Back

Phospholipids form the basic structure of the cell membrane, creating a barrier that separates the inside of the cell from the outside environment.

Front

What is phagocytosis?

Back

A type of active transport where a cell takes in large amounts of solid particles by engulfing them.

Front

What is a channel protein?

Back

A type of protein that spans the cell membrane and allows specific molecules or ions to pass through.

Front

What factors can speed up the rate of diffusion?

Back

High temperatures, increased concentration gradient, and smaller molecule size can speed up diffusion.

Front

What is exocytosis?

Back

A process by which a cell expels large amounts of substances by vesicles fusing with the cell membrane.

Front

What is osmosis?

Back

The diffusion 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 the role of cholesterol in the cell membrane?

Back

Cholesterol helps to stabilize the cell membrane's fluidity and structure.

Front

What is diffusion?

Back

The movement of molecules from an area of higher concentration to an area of lower concentration until equilibrium is reached.

Front

What is a receptor protein?

Back

A protein that binds to specific molecules (ligands) outside the cell, triggering a response inside the cell.