plumiMonomers, polymers and chemical elements: OCR A‑Level Biology A questions
OCR A-Level Biology A past-paper questions on 2.1.2.2 Monomers, polymers and chemical elements, 2016–2025, with mark schemes and examiner’s reports where available.
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All 14 questions on Monomers, polymers and chemical elements, as a list
- June 2025, Paper 1, Q4 (1 mark): Which option describes the structure of biological molecules? A Carbohydrates contain only C, H and O, usually with an H to O ratio of 2 : 1. B Nucleic acids co
- June 2024, Paper 1, Q2 (1 mark): Lipids, polysaccharides, nucleic acids and proteins are all macromolecules. Which statement about macromolecules is correct? A All macromolecules are formed in
- June 2024, Paper 1, Q16(a) (3 marks): The table lists some biological molecules. Complete the table by putting a tick (✓) in the appropriate box or boxes on each line to show whether the correspondi
- June 2023, Paper 1, Q1 (1 mark): Which description of biological molecules is correct? A DNA and RNA are both polymers of nucleotides. B Hydrolysis of sucrose produces fructose and β-glucose. C
- June 2023, AS Paper 1, Q11 (1 mark): Which statement is a correct description of polymers? A A polymer is broken down by condensation reactions. B A polymer is formed when two monomers bond togethe
- June 2023, AS Paper 1, Q12 (1 mark): A scientist analysed and recorded all of the chemical elements in one particular amino acid. Which elements did the scientist record? A C, H, N, S B C, H, O, N
- November 2020, Paper 2, Q10 (1 mark): Which of the following reactions, A to D, describes the conversion of a polymer to a monomer? esterification fatty acids and glycerol → triglyceride A condensat
- November 2020, Paper 2, Q20(b)(ii) (1 mark): Carbohydrates contain only the elements carbon, hydrogen and oxygen. Polypeptides contain carbon, hydrogen, oxygen and nitrogen. Name one other element present
- November 2020, AS Paper 1, Q15 (1 mark): Which of the rows, A to D, contains the correct elements that are found in proteins? carbon hydrogen oxygen phosphorus nitrogen sulphur A 3 3 3 B 3 3 3 3 3 C 3
- June 2018, Paper 1, Q2 (1 mark): The following are a series of organic molecules and the chemical processes that occur to convert them into different molecules. Which of the rows, A to D, is co
- June 2018, Paper 1, Q3 (1 mark): The following table describes the approximate percentage mass of different chemical elements in organic polymers. N C O H P Polymer (%) (%) (%) (%) (%) A nuclei
- June 2018, Paper 2, Q4 (1 mark): Which of the following processes involves the formation of ester bonds? 1 synthesis of polynucleotides 2 synthesis of triglycerides 3 synthesis of polypeptides
- June 2018, Paper 2, Q22(b)(i) (3 marks): The rate of hydrocarbon breakdown by bacteria can be increased by spraying the oil with detergent. Detergents break up oil into droplets, thereby increasing the
- June 2018, AS Paper 1, Q19 (1 mark): The table below shows four biological molecules and their component elements. Which of the rows, A to D, correctly identifies the elements in each molecule? suc
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