Osmosis and Diffusion Review

Front

What happens to an animal cell placed in a hypertonic (salty) solution?

Back

The cell will shrink (get smaller) due to water moving out of the cell.

Front

What are diffusion and osmosis examples of?

Back

Both are examples of passive transport.

Front

What does semi-permeable mean?

Back

It means that some things can pass through, while others cannot.

Front

Where is there a low concentration of dye in a cup?

Back

At the bottom of the cup.

Front

What is a hypotonic environment?

Back

A hypotonic environment is one where the concentration of solutes is lower outside the cell than inside, causing the cell to swell.

Front

What is diffusion?

Back

Diffusion is the movement of molecules from an area of higher concentration to an area of lower concentration.

Front

What is osmosis?

Back

Osmosis is the diffusion of water across a semi-permeable membrane.

Front

What is the difference between active transport and passive transport?

Back

Active transport requires energy to move substances against their concentration gradient, while passive transport does not.

Front

What is a concentration gradient?

Back

A concentration gradient is the difference in the concentration of a substance between two areas.

Front

What happens to a cell in a hypotonic solution?

Back

The cell will swell and may burst due to water moving into the cell.