A-LevelBiologyBiological moleculesMay/June 2025Paper 1 Q111 Mark
Which bonds are found in the levels of structure of a protein molecule?
Aprimary structure: covalent bond, secondary structure: hydrogen bond, quaternary structure: peptide bond
Bprimary structure: covalent bond, secondary structure: ionic bond, quaternary structure: disulfide bond
Cprimary structure: peptide bond, secondary structure: hydrogen bond, quaternary structure: ionic bond
Dprimary structure: peptide bond, secondary structure: ionic bond, quaternary structure: disulfide bond
✓ Correct Answer
The correct answer is C. 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...
🔒
Unlock the Examiner's Answer
Sign up for free to reveal the correct answer, the official mark scheme breakdown, and the examiner trap analysis for this question.
Sign Up Free to Unlock →Join thousands of Cambridge students already using Oracle Prep