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Question 2

From Biology HL Paper 2 (May 2024, TZ2)

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  1. Scientists measure phloem transport rates in plants using aphid stylets.

(a) Outline how radioactive ¹⁴CO₂ and aphids are used to measure phloem transport rates. [2]

(b) Explain how sugars are transported from sources to sinks in the phloem. [2]

Textbook topics in this question

Review the exact course sections assessed by each question part.

2(a)8.2 Plant Transport
2(b)8.2 Plant Transport