Cell Transport Review

Front

During passive transport, molecules move from an area of ______ concentration to an area of _____ concentration.

Back

higher, lower

Front

The diffusion of water is known as ______.

Back

Osmosis

Front

During active transport, molecules move from an area of ______ concentration to an area of _____ concentration.

Back

lower, higher

Front

A membrane that lets some things pass through but not others is called ______.

Back

Selectively permeable

Front

In a freshwater solution, the concentration of water will be ______ inside a cell, which will cause water to ______.

Back

lower, come into the cell

Front

What is the process called when molecules spread from an area of high concentration to an area of low concentration?

Back

Diffusion

Front

What type of transport requires energy to move molecules against their concentration gradient?

Back

Active transport

Front

What is the term for the movement of substances across a cell membrane without the use of energy?

Back

Passive transport

Front

What happens to a cell placed in a hypertonic solution?

Back

It shrinks due to water leaving the cell.

Front

What is the main difference between osmosis and diffusion?

Back

Osmosis specifically refers to the movement of water.