Cell Transport

Front

What is diffusion?

Back

Diffusion is the process by which molecules move from an area of high concentration to an area of low concentration until equilibrium is reached.

Front

What is passive transport?

Back

Passive transport is the movement of molecules across a cell membrane without the use of energy, typically occurring through diffusion.

Front

What is the difference between active transport and passive transport?

Back

Active transport requires energy to move molecules against their concentration gradient, while passive transport does not require energy and moves molecules down their concentration gradient.

Front

What is facilitated diffusion?

Back

Facilitated diffusion is a type of passive transport that uses protein channels to help molecules cross the cell membrane.

Front

What is osmosis?

Back

Osmosis is 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 endocytosis?

Back

Endocytosis is the process by which a cell takes in large molecules by engulfing them with its cell membrane.

Front

What is exocytosis?

Back

Exocytosis is the process by which large molecules exit a cell by being packaged in vesicles that fuse with the cell membrane.

Front

What is pinocytosis?

Back

Pinocytosis is a form of endocytosis where the cell engulfs liquid and small particles.

Front

What is phagocytosis?

Back

Phagocytosis is a type of endocytosis where the cell engulfs large particles or even other cells.

Front

What role do protein channels play in cell transport?

Back

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