Waec Model Questions Vol1 2017 Biology Question 20
Practice objective / multiple choice question 20 from the 2017 Waec Model Questions Vol1 Biology examination.
A solute diffuses across a biological membrane that is 0.02 cm thick. The membrane surface area is 2.0 cm², the diffusion coefficient of the solute in the membrane is 1.5 × 10⁻⁵ cm² s⁻¹, and the concentration difference across the membrane is 0.5 mol cm⁻³. Using Fick's first law of diffusion (Rate = D × A × ΔC / Δx), calculate the rate of diffusion of the solute in mol s⁻¹.
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This is Waec Model Questions Vol1 2017 Biology Question 20. It is one of the objective questions from the 2017 Waec Model Questions Vol1 Biology examination.
Difficulty level: Medium .
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