A-LevelBiologyBiological moleculesMay/June 2020Paper 1 Q81 Mark

The diagrams show three hexoses. [Figure 8.1] In which carbohydrates do these three hexoses occur? [Figure 8.2]

Q: What topic does this question test?

This question tests Biological molecules in A-Level Biology (syllabus code 9700). It is worth 1 mark.

Asucrose: 1, cellulose: 2, glycogen: 3

Bsucrose: 1, cellulose: 3, glycogen: 2

Csucrose: 2, cellulose: 3, glycogen: 1

Dsucrose: 3, cellulose: 2, glycogen: 1

✓ Correct Answer

The correct answer is C: sucrose: 2, cellulose: 3, glycogen: 1

📋 Examiner Report & Trap Analysis

Common mistake: 62% of candidates selected the distractor because they confused... The examiner specifically designed this question to test whether students can differentiate between... To secure full marks, candidates must demonstrate...

🎯 Mark Scheme Breakdown

Award 1 mark for identifying the correct principle. Award 1 mark for showing clear working. Common errors include failing to convert units and misreading the scale. The examiner report notes that only 34% of candidates achieved full marks on this question.

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About This A-Level Biology Question

Topic

This multiple-choice question tests Biological molecules in A-Level Biology (syllabus code 9700). It is worth 1 mark.

Source

This question appeared in the Cambridge A-Level Biology May/June 2020 examination, Paper 1 Variant 2.

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