Biological molecules — Difficult
Transfer your understanding to a changed context, justify decisions and check your reasoning. No hints during the test.
Includes extension practice
Molecule building blocks and four food tests are required; DNA as the material of genes is also required elsewhere. DCPIP testing, double-helix/base-pair structure and quantitative base pairing go beyond the specified content.
Easy, Normal and Difficult describe practice demand; they are not the official Core and Extended tiers.
- Cambridge 0973 syllabus2028–2029 · B4.1.1–3;B16.1.1–3
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