O-LevelBiologyHuman Nutrition5090/12 · May/June 2015 · Q101 Mark

A food is known to contain protein, but no reducing sugar. When this food is tested with biuret solution and Benedict's solution which colours would a student observe?

Ablue, blue

Bblue, brick red

Clilac/violet, blue

Dlilac/violet, brick red

✓ Correct answer

C: lilac/violet, blue

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Topic: Human Nutrition, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source: O-Level Biology, May/June 2015 Paper 1 Variant 2, question 10.

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