Which row about the structure of proteins is correct? [Figure 10.1]
✓ Correct Answer
The correct answer is D: primary structure: is the sequence of amino acids in a protein coded by an mRNA molecule, tertiary structure: is formed as a result of interaction of the side chains of amino acids in the primary structure, quaternary structure: is formed by the linking together of more than one polypeptide to form a protein
📋 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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