Cell Transport

Front

What is an isotonic environment?

Back

An isotonic environment is one where the concentrations of water are equal inside and outside the cell.

Front

What are the two types of cell transport?

Back

The two types of cell transport are Passive and Active transport.

Front

What is passive transport?

Back

Passive transport is the movement of materials across the cell membrane that does NOT require energy.

Front

How do substances move in passive transport?

Back

In passive transport, substances move across the cell membrane WITH the concentration gradient.

Front

What is active transport?

Back

Active transport is the movement of materials across the cell membrane that requires energy.

Front

How do substances move in active transport?

Back

In active transport, substances move against the concentration gradient.

Front

What is diffusion?

Back

Diffusion is the process by which molecules spread from areas of high concentration to areas of low concentration.

Front

What is osmosis?

Back

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

Front

What is a selectively permeable membrane?

Back

A selectively permeable membrane allows certain substances to pass through while blocking others.

Front

What is facilitated diffusion?

Back

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