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Cambridge AS & A Level Biology

2Biological molecules

Biological molecules in Cambridge AS & A Level Biology: what the syllabus expects you to know, the learning objectives and how to practise.
Topic139 practice questions7 lessons

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Lessons

  • Tests for biological molecules

    35 min

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  • Monosaccharides, disaccharides and glycosidic bonds

    30 min

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  • Starch, glycogen and cellulose

    30 min

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  • Triglycerides and phospholipids

    30 min

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  • Amino acids and the four levels of protein structure

    35 min

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  • Haemoglobin and collagen: a globular and a fibrous protein

    30 min

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  • Water: hydrogen bonding and its properties for life

    30 min

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Sample question

A sample question on this topic. Answer it, check it, then read the worked answer.

Biological molecules: sample question

1 mark

How does β-glucose differ from α-glucose?

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