Unit 3: Cells

Front

What is a hypertonic environment?

Back

A hypertonic environment is one where the concentration of solutes outside the cell is higher than inside the cell, causing water to move out of the cell.

Front

In a hypertonic environment, which way will water move?

Back

Out of the cell.

Front

What is passive transport?

Back

Passive transport is the movement of substances across a cell membrane without the use of energy.

Front

What does passive transport require?

Back

Passive transport requires no energy.

Front

What is tonicity?

Back

Tonicity is the concentration of solutes in a solution relative to the concentration of solutes inside a cell.

Front

What is osmosis?

Back

Osmosis is the movement of water into or out of a cell through a semi-permeable membrane.

Front

What is selective permeability?

Back

Selective permeability is the ability of the cell membrane to allow some substances to pass through while preventing others.

Front

What is a hypotonic environment?

Back

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

Front

What happens to a cell in a hypertonic solution?

Back

The cell will lose water and may shrivel.

Front

What happens to a cell in a hypotonic solution?

Back

The cell will gain water and may swell or burst.