A-LevelBiologyBiological moleculesMay/June 2021Paper 1 Q61 Mark
A student carries out a semi-quantitative test with Benedict’s solution. Which statement about this procedure is correct?
AIt detects only the presence or absence of glucose.
BIt provides an indication of relative reducing sugar concentrations.
CThe precipitate needs to be filtered, dried and weighed to give the reducing sugar concentration.
Dcolorimeter needs to be used to determine the glucose concentration.
✓ Correct Answer
The correct answer is B. This question tests the candidate's understanding of biological molecules within the Biologysyllabus. The examiner's mark scheme requires...
📋 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...
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