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Biology Free Topical Past Papers

SQA Higher Biology past-paper questions grouped by official syllabus topic. Free archive, no signup. Want step-by-step worked solutions? See Biology Topical Solved.

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24 topics covered, mapped to the official SQA 2026 syllabus.

Topic 1

Replication of DNA

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Topic 2

Gene expression

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Topic 3

Cellular differentiation

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Topic 4

Mutations

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Topic 5

Evolution

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Topic 6

Genomic sequencing

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Topic 7

Metabolic pathways

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Topic 8

Cellular respiration

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Topic 9

Metabolic rate

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Topic 10

Metabolism in conformers and regulators

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Topic 11

Metabolism and adverse conditions

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Topic 12

Environmental control of metabolism

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Topic 13

Genetic control of metabolism

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Topic 14

Food supply, plant growth and productivity

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Topic 15

Plant and animal breeding

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Topic 16

Crop protection

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Topic 17

Animal welfare

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Topic 18

Symbiosis

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Topic 19

Social behaviour

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Topic 20

Components of biodiversity

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Topic 21

Threats to biodiversity

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Topic 22

Metabolism in conformers and

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Topic 23

Environmental control of

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Topic 24

Food supply, plant growth and

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