Translocation — Normal
Apply the topic independently and explain your method. 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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