Cell Membrane and Transport

Front

What is diffusion?

Back

Diffusion is a type of passive transport that moves particles from an area of high concentration to an area of low concentration without the use of energy.

Front

What happens to an animal cell in a hypertonic solution?

Back

An animal cell placed in a hypertonic (salty) solution will shrink (get smaller) due to the loss of water.

Front

Where does water move in a hypertonic solution?

Back

In a hypertonic solution, water moves out of the cell.

Front

What is osmosis?

Back

Osmosis is the diffusion of water across a selectively permeable cell membrane.

Front

What type of solution should cells ideally be in?

Back

Cells should ideally be in an isotonic solution, where the concentration of solutes is equal inside and outside the cell.

Front

Define hypertonic solution.

Back

A hypertonic solution has a higher concentration of solutes compared to the inside of the cell, causing water to move out of the cell.

Front

Define hypotonic solution.

Back

A hypotonic solution has a lower concentration of solutes compared to the inside of the cell, causing water to move into the cell.

Front

What is the role of the cell membrane?

Back

The cell membrane regulates what enters and exits the cell, providing protection and support.

Front

What is active transport?

Back

Active transport is the movement of molecules across a cell membrane from a region of lower concentration to a region of higher concentration, requiring energy.

Front

What is facilitated diffusion?

Back

Facilitated diffusion is a type of passive transport that uses transport proteins to help move molecules across the cell membrane.