Waec Model Questions Vol1 2021 Biology Question 36
Practice objective / multiple choice question 36 from the 2021 Waec Model Questions Vol1 Biology examination.
In a greenhouse, a plant experiences a root pressure of 0.15 MPa while transpiration in the leaves creates a tension of -0.45 MPa. The total cross‑sectional area of its xylem vessels is 2.5×10⁻⁵ m² and the hydraulic conductivity of the xylem is 5×10⁻⁵ m s⁻¹ MPa⁻¹. Assuming water flow follows Q = K·ΔΨ·A, where ΔΨ is the water‑potential difference, calculate the net volume of water transported through the xylem in one hour. Give your answer in millilitres (mL) to one decimal place.
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About This Question
This is Waec Model Questions Vol1 2021 Biology Question 36. It is one of the objective questions from the 2021 Waec Model Questions Vol1 Biology examination.
Difficulty level: Medium .
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