Biochemistry: Solubility, Concentration and Diffusion

Solubility is the measure of __________ substances dissolve in.

what

The substance being dissolved in a solution is called the __________.

solute

The liquid that the solute dissolves in is called the __________.

solvent

The most important solubility rule is '__________' which means solutes dissolve in solvents that are like themselves.

'like dissolves like'

Polar solvents like water dissolve __________ molecules.

polar

Non-polar solvents dissolve __________ molecules.

non-polar

Non-polar solutes do not dissolve in __________ solvents.

polar

Ions behave like __________ solutes and are easily dissolved in water.

polar

Hydrophilic molecules are __________ molecules that dissolve in water.

polar

Hydrophobic molecules are __________ molecules that do not dissolve in water.

non-polar

Hydrophilic means __________.

water loving

An example of a hydrophilic molecule is __________.

Glucose (sugar)

Hydrophobic means __________.

water fearing

An example of a hydrophobic molecule is __________.

Lipids/fats like oil

Amphipathic molecules have a __________ end and a __________ end.

polar; non-polar

Amphipathic molecules can be used as __________ and to dissolve solutes in solvents.

detergents

Amphipathic molecules are important for forming __________ membranes.

biological

Solute concentration is a measure of the amount of __________ dissolved in a specific volume of solvent.

solute

The formula for calculating solute concentration is __________.

Concentration = amount of solute ÷ volume of solvent

More solute equals __________ concentration.

higher

Less solvent equals __________ concentration.

higher

Molarity is defined as moles of solute per __________ of water.

one liter

1 M glucose equals __________ mol glucose per 1 L of water.

1

Typical molarities in body fluids are measured in __________.

millimolar (mM)