Cell Transport

Front

What is a hypotonic solution?

Back

A solution that has a lower amount of solute compared to the cell, leading to water entering the cell.

Front

Why is passive transport called 'passive'?

Back

Because it occurs without the use of energy.

Front

What role do channel proteins play in facilitated diffusion?

Back

They help move molecules across a membrane by providing a passageway.

Front

What is simple diffusion?

Back

The movement of molecules from an area of high concentration to an area of low concentration without the need for energy.

Front

What is active transport?

Back

The process that allows a cell to move molecules from an area of low concentration to an area of high concentration, requiring energy.

Front

What is osmosis?

Back

The diffusion of water across a selectively permeable membrane.

Front

What is the difference between passive and active transport?

Back

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

Front

What is a concentration gradient?

Back

A difference in the concentration of a substance across a space.

Front

What happens to a cell in a hypertonic solution?

Back

The cell loses water and may shrivel due to a higher concentration of solute outside the cell.

Front

What is the function of a protein pump?

Back

To actively transport molecules across a membrane against their concentration gradient.