Gce Model Questions Vol1 2020 Biology Question 9
Practice objective / multiple choice question 9 from the 2020 Gce Model Questions Vol1 Biology examination.
A cylindrical blood vessel segment is 10 cm long and has an initial radius of 0.5 mm. Blood viscosity is \(3.5 \times 10^{-3}\) Pa·s and the volumetric flow rate is 5 mL min⁻¹. If the radius decreases by 20 % due to vasoconstriction while the pressure gradient remains unchanged, calculate the new flow rate (mL min⁻¹) using Poiseuille's law (assume flow is proportional to the fourth power of the radius).
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This is Gce Model Questions Vol1 2020 Biology Question 9. It is one of the objective questions from the 2020 Gce Model Questions Vol1 Biology examination.
Difficulty level: Medium .
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