3.1.1 Monomers and Polymers

Define ‘monomer’

smaller units that join together to form larger molecules.

Name some examples of monomers.

• monosaccharides (glucose, fructose, galactose)

• amino acids

• nucleotides

Define ‘polymer’

molecules composed of smaller repeating units (monomers), joined together by covalent bonds.

Name some examples of polymers.

• polysaccharides

• proteins

• DNA / RNA

What happens in a condensation reaction?

A chemical bond forms between 2 molecules and a molecule of water is produced.

What happens in a hydrolysis reaction?

A water molecule is used to break a chemical bond between 2 molecules.