0654.B5.1.01 — Describe enzymes as proteins that are involved in all metabolic reactions, where they function as biological catalysts: past paper questions
Real questions on 0654.b5.1.01 — describe enzymes as proteins that are involved in all metabolic reactions, where they function as biological catalysts
The newest 6 of 6 written questions. Open one to see it on the real paper.
- 0654/32 · February/March 2025 · Q2b(i)[3]
Large biological molecules are made from smaller molecules. Complete the sentences about different biological molecules. Large protein molecules are made from smaller molecules called . The elements in protein molecules are carbon, , Glycogen is a large molecule made from smaller molecules oxygen and .
See it on the paper → - 0654/12 · May/June 2023 · Q27[1]
Which diagram represents a molecule that is formed by fermentation?
See it on the paper → - 0654/42 · October/November 2021 · Q1a[2]
the term enzyme.
See it on the paper → - 0654/21 · May/June 2021 · Q4[1]
What is an enzyme?
See it on the paper → - 0654/22 · May/June 2021 · Q4[1]
Which type of molecule are enzymes?
See it on the paper → - 0654/11 · October/November 2019 · Q4[1]
Which statements are correct for all enzymes?
See it on the paper →
What examiners said
Many candidates did not know that glycogen is made from smaller molecules called glucose.
— Examiner report, February/March 2025, 0654/32 Q2(b)(i) (Cambridge)
Candidates chose the incorrect answer C more often than the correct answer, D. They are expected to know the structure of ethanol and to know that it is formed by fermentation.
— Examiner report, May/June 2023, 0654/12 Q27 (Cambridge)
Some candidates did not know the definition of the term enzyme and instead gave the function of an enzyme or the definition of a catalyst. Candidates generally either recognised an enzyme as a biological catalyst or that it was made from protein but relatively few candidates gave both parts of the definition.
— Examiner report, October/November 2021, 0654/42 Q1(a) (Cambridge)
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