Food: provides organisms with nutrients for energy and materials to live

5 elements are dissolved in salts: sodium magnesium chlorine potassium and calcium

Biomolecules are chemicals made inside living things

CARBOHYDRATES

Types of carbohydrates

Souces of carbohydrates

Structural role of carbohydrates

Metabolic role

Uses of carbohydrates

Lipids

Structure of lipids

Sources of lipids

Structural role of lipids

Metabolic role of lipids

PROTEINS

Structure of protein

Sources of protein

Structural role of protein

Metabolic role of protein

VITAMIN C (ascorbic acid)

Sources of vitamin c

Metabolic role of vitamin c

Deficiency

VITAMIN D (calciferol)

Sources of vitamin d

Metabolic role of vitamin d

Deficiency