Igcse Model Questions Vol1 2020 Biology Question 19
Practice objective / multiple choice question 19 from the 2020 Igcse Model Questions Vol1 Biology examination.
Two desert shrubs differ in leaf morphology. Species X has a leaf area of 30 cm², stomatal density of 200 mm⁻² and each stomata opens to an area of 5 µm². Species Y has a leaf area of 20 cm², stomatal density of 150 mm⁻² and each stomata opens to an area of 8 µm². Transpiration rate is proportional to the total open stomatal area multiplied by the temperature difference between leaf interior and air. The temperature difference is 15 °C for species X and 10 °C for species Y. Which species loses more water per hour?
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This is Igcse Model Questions Vol1 2020 Biology Question 19. It is one of the objective questions from the 2020 Igcse Model Questions Vol1 Biology examination.
Difficulty level: Hard .
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