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Question 10

From Biology HL Paper 2 (May 2025, TZ2)

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  1. There is a relationship between form and function in the diversity of molecules and of systems.
    (a) Describe the relationship between codons and polypeptide structure. [4]

(b) Outline the relationship between structure and function in photosystems. [3]

(c) Explain the causes of a decreased blood pH and its effects on the ventilation rate in humans. [8]

Textbook topics in this question

Review the exact course sections assessed by each question part.

Mixed-topic question
10(a)3.5 Translation and the Genetic Code1.6 Proteins
10(b)2.6 Photosynthesis, Light and Pigments2.8 Light-dependent Reactions and the Calvin Cycle
10(c)8.3 Gas Exchange8.5 Homeostasis and the Kidney