Cell Transport

Front

What is diffusion?

Back

The movement of molecules from an area of high concentration to an area of low concentration.

Front

What type of solution causes a cell to shrink?

Back

Hypertonic solution.

Front

What is osmosis?

Back

The diffusion of water molecules across a selectively permeable membrane.

Front

What is active transport?

Back

The process of moving substances against their concentration gradient, requiring energy in the form of ATP.

Front

What is passive transport?

Back

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

Front

What happens to a cell in a hypotonic solution?

Back

The cell swells as water enters due to a lower concentration of solutes outside the cell.

Front

What is an isotonic solution?

Back

A solution where the concentration of solutes is equal inside and outside the cell, resulting in no net movement of water.

Front

What is the role of the cell membrane in transport?

Back

It acts as a barrier that regulates the movement of substances in and out of the cell.

Front

What is facilitated diffusion?

Back

A type of passive transport that uses transport proteins to help move molecules across the cell membrane.

Front

What is the concentration gradient?

Back

The difference in concentration of a substance between two areas.