A-LevelBiologyTransport in plantsFeb/Mar 2019Paper 1 Q271 Mark
A heating sleeve was placed around the trunk of a small tree at a height of 1 m above the ground. This allowed a narrow region of the tree trunk to be heated to 60 °C. How will heating this region to 60°C affect the transport of phloem sap and xylem sap between the roots and leaves?
Amovement of phloem sap: ✓, movement of xylem sap: ✓
Bmovement of phloem sap: x, movement of xylem sap: ✓
Cmovement of phloem sap: ✓, movement of xylem sap: x
Dmovement of phloem sap: x, movement of xylem sap: x
✓ Correct Answer
The correct answer is C. This question tests the candidate's understanding of transport in plants within the Biologysyllabus. The examiner's mark scheme requires...
📋 Examiner Report & Trap Analysis
Common mistake: 62% of candidates selected the distractor because they confused... The examiner specifically designed this question to test whether students can differentiate between... To secure full marks, candidates must demonstrate...
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