Cell Transport

Front

What is Passive Transport?

Back

Movement of materials from high to low concentration through a protein channel without the use of energy.

Front

What is Active Transport?

Back

Movement of materials from low to high concentration against the concentration gradient, requiring energy.

Front

What is Exocytosis?

Back

A type of active transport where materials are expelled from the cell.

Front

What is Endocytosis?

Back

A type of active transport where materials are brought into the cell.

Front

What does 'with the concentration gradient' mean?

Back

Movement of particles from an area of high concentration to an area of low concentration.

Front

What does 'against the concentration gradient' mean?

Back

Movement of particles from an area of low concentration to an area of high concentration.

Front

What is the role of protein channels in cell transport?

Back

They facilitate the movement of specific molecules across the cell membrane.

Front

What is the difference between passive and active transport?

Back

Passive transport does not require energy, while active transport requires energy.

Front

Give an example of passive transport.

Back

Diffusion of oxygen into cells.

Front

Give an example of active transport.

Back

Sodium-potassium pump moving sodium out of the cell.