Tonicity Throwback Review Biology 6th pd

Front

What is osmosis?

Back

The diffusion of water across a semi-permeable membrane.

Front

How do cells maintain homeostasis?

Back

By regulating what enters and leaves the cell.

Front

What happens to a cell in a hypertonic solution?

Back

The cell will shrink.

Front

What happens to a cell in a hypotonic solution?

Back

The cell will swell and perhaps burst (lyse).

Tags

NGSS.HS-LS1-3

Front

What is a hypertonic solution?

Back

A solution with a higher concentration of solutes compared to the inside of the cell.

Front

What is a hypotonic solution?

Back

A solution with a lower concentration of solutes compared to the inside of the cell.

Front

What is an isotonic solution?

Back

A solution with the same concentration of solutes as the inside of the cell.

Front

Define semi-permeable membrane.

Back

A membrane that allows certain molecules to pass through while blocking others.

Front

What is the role of the cell membrane?

Back

To act as a protective barrier and regulate the movement of substances in and out of the cell.

Tags

NGSS.MS-LS1-2

Front

What is the process of diffusion?

Back

The movement of molecules from an area of higher concentration to an area of lower concentration.