Translocation — Difficult
Transfer your understanding to a changed context, justify decisions and check your reasoning. No hints during the test.
Extension practice
Phloem transport of sucrose and amino acids is required, but source–sink translocation and changing source/sink roles are not listed. This entire added topic develops that extension.
Easy, Normal and Difficult describe practice demand; they are not the official Core and Extended tiers.
- Cambridge 0653 syllabus2028–2029 · B8.1.1(b);B8.1–B8.3
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