Homeostasis & Cell Transport Test Review

Front

The protein that helps in facilitated diffusion are _______ proteins.

Back

Both Carrier and Channel proteins.

Front

Which term describes a cell that has the same concentration of solutes as its surroundings?

Back

Isotonic.

Front

The substance that is dissolved in a solution is called the:

Back

Solute.

Front

Which term describes a cell that has a higher concentration of solutes than its surroundings?

Back

Hypertonic.

Front

The cell below is in a _____________ solution.

Back

Hypotonic.

Front

What is the process called when molecules move from an area of higher concentration to an area of lower concentration?

Back

Diffusion.

Front

What is the role of the cell membrane in maintaining homeostasis?

Back

It regulates the movement of substances in and out of the cell.

Front

What is osmosis?

Back

The diffusion of water across a selectively permeable membrane.

Front

Define homeostasis.

Back

The maintenance of a stable internal environment in an organism.

Front

What happens to a cell in a hypotonic solution?

Back

It swells as water enters the cell.