A-LevelBiologyBiological moleculesOct/Nov 2014Paper 1 Q81 Mark
Two disaccharides are maltose and sucrose. Maltose is formed from two molecules of glucose whilst sucrose is formed from fructose and glucose. Which row shows the molecular formulae of the two disaccharides?
Amaltose: C₁₂H₂₂O₁₁, sucrose: C₁₂H₂₂O₁₁
Bmaltose: C₁₂H₂₂O₁₁, sucrose: C₁₂H₂₄O₁₂
Cmaltose: C₁₂H₂₄O₁₂, sucrose: C₁₂H₂₂O₁₁
Dmaltose: C₁₂H₂₄O₁₂, sucrose: C₁₂H₂₄O₁₂
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The correct answer is A. This question tests the candidate's understanding of biological molecules within the Biologysyllabus. The examiner's mark scheme requires...
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