A-LevelBiologyTransport in plantsMay/June 2020Paper 1 Q251 Mark
External factors change the rate of transpiration, which also affects the water potential gradient of cells in the leaf. Which combination is correct? [Figure 25.1]
Aexternal factor changing the rate of transpiration: decreasing temperature, water potential gradient in the leaf: increases
Bexternal factor changing the rate of transpiration: decreasing wind speed, water potential gradient in the leaf: increases
Cexternal factor changing the rate of transpiration: increasing relative humidity, water potential gradient in the leaf: decreases
Dexternal factor changing the rate of transpiration: increasing sunlight, water potential gradient in the leaf: decreases
✓ 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...
🔒
Unlock the Examiner's Answer
Sign up for free to reveal the correct answer, the official mark scheme breakdown, and the examiner trap analysis for this question.
Sign Up Free to Unlock →Join thousands of Cambridge students already using Oracle Prep