Unit 2 Biology Vocab Quiz

The strength of a solution; number of molecules of a substance in a given volume.

• concentration

• solvent

• solute

• osmosis

A liquid in which substances (solute) are dissolved forming a solution.

• concentration

• solvent

• solute

• osmosis

A substance that can be dissolved by a solvent to create a solution.

• concentration

• solvent

• solute

• osmosis

The movement of molecules other than water from an area where they’re highly concentrated to an area where they’re less concentrated.

• diffusion

• facilitated diffusion

• active transport

• osmosis

The diffusion of water across a membrane from high concentration to low concentration.

• diffusion

• facilitated diffusion

• active transport

• osmosis

The movement of a substance (such as glucose) through a cell membrane along a concentration gradient with the help of membrane proteins acting as carrier molecules.

• diffusion

• facilitated diffusion

• active transport

• osmosis

The movement of molecules or ions from an area of lower to higher concentration against a gradient - which does not ordinarily occur, so enzymes and energy are required.

• diffusion

• facilitated diffusion

• active transport

• osmosis

The concentrations of the substances (solutes) and water (solvent) on both sides of the membrane are equal.

• isotonic

• hypertonic

• hypotonic

• equilibrium

The solution has a higher concentration of substances (and less water) when compared to others.

• isotonic

• hypertonic

• hypotonic

• equilibrium

The solution has a lower concentration of substances (and more water) when compared to others.

• isotonic

• hypertonic

• hypotonic

• equilibrium