Igcse Model Questions Vol1 2024 Biology Question 39
Practice objective / multiple choice question 39 from the 2024 Igcse Model Questions Vol1 Biology examination.
Transpiration rate (\(R\)) of a leaf is directly proportional to its stomatal density (\(D\)) and inversely proportional to its cuticle thickness (\(T\)): \(R = k \frac{D}{T}\), where \(k\) is a constant for a given environment. A desert plant leaf has \(D = 150\ \text{mm}^{-2}\) and \(T = 8\ \mu\text{m}\), and its measured transpiration rate is \(0.75\ \text{mg·h}^{-1}\text{·cm}^{-2}\). A rainforest plant leaf has \(D = 300\ \text{mm}^{-2}\) and \(T = 2\ \mu\text{m}\). Assuming the same constant \(k\), calculate the expected transpiration rate of the rainforest leaf (in the same units), rounded to two decimal places.
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This is Igcse Model Questions Vol1 2024 Biology Question 39. It is one of the objective questions from the 2024 Igcse Model Questions Vol1 Biology examination.
Difficulty level: Hard .
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