Gce Model Questions Vol1 2024 Biology Question 11
Practice objective / multiple choice question 11 from the 2024 Gce Model Questions Vol1 Biology examination.
A leaf's cuticle thickness t (in µm) reduces water loss rate W (mg H₂O h⁻¹ cm⁻²) according to \(W = W_0\bigl(1 - e^{-0.2t}\bigr)\) where \(W_0 = 10\). The same cuticle reduces CO₂ uptake rate P (mg CO₂ h⁻¹ cm⁻²) according to \(P = P_0\bigl(1 - 0.1t\bigr)\) with \(P_0 = 5\). Net carbon gain is \(G = P - 0.5W\). To maintain a net gain of at least 2 mg CO₂ h⁻¹ cm⁻², what is the minimum cuticle thickness t (to two decimal places) required?
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This is Gce Model Questions Vol1 2024 Biology Question 11. It is one of the objective questions from the 2024 Gce Model Questions Vol1 Biology examination.
Difficulty level: Hard .
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