From small to large 1. The larger biological molecules are made from smaller molecules. Polysaccharides are made from monosaccharides, ...

About 80% of the organism's body is  H 2 O . Its molecule has a small  negative charge  (β-) on the  O  atom                      ...

Globular and Fibrous are 2 main types of proteins with a 3D structure.

Amino acids can be linked together in any order to form a long chain - polypeptide . Protein molecules can be made up of the same po...

Proteins are large molecules made of long chains of amino acids .

Lipids: - Include triglycerides + phospholipids . - Molecules contain C, H, O atoms - Very small proportion of O. - Insoluble...

Tests for Reducing sugars, Non-reducing sugar and Starch .

Molecules contain hundreds/thousands of monosaccharides linked into long chains. Molecules are enormous --> the majority do not dis...

Carbohydrates: - Sugar polymers - Molecules contain C, H, O atoms - H atoms are twice as many as C or O atoms  (C 6 H 12 O 6 ) ...

2.1    Testing for biological molecules 2.2    Carbohydrates and lipids 2.3    Proteins and water

• Structure of carbohydrates, lipids and proteins and their roles in living organisms • Water and living organisms