A-Level Biology Specification

AQA 7402

Section 1.1: Monomers and polymers

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#1.1.1

The variety of life, both past and present, is extensive, but the biochemical basis of life is similar for all living things.

#1.1.2

Monomers are the smaller units from which larger molecules are made.

#1.1.3

Polymers are molecules made from a large number of monomers joined together.

#1.1.4

Monosaccharides, amino acids and nucleotides are examples of monomers.

#1.1.5

A condensation reaction joins two molecules together with the formation of a chemical bond and involves the elimination of a molecule of water.

#1.1.6

A hydrolysis reaction breaks a chemical bond between two molecules and involves the use of a water molecule.