Neco 2024 Biology Question 40

Practice objective / multiple choice question 40 from the 2024 Neco Biology examination.

Neco 2024 Biology Objective / Multiple Choice Medium Difficulty
Question 40 NECO • 2024 • BIOLOGY • objective

Using the Fick principle, calculate the oxygen consumption (VO₂) at rest and during intense exercise for a student. At rest, cardiac output is 5 L·min⁻¹ and the arteriovenous O₂ difference is 5 mL·100 mL⁻¹ blood. During intense exercise, cardiac output rises to 20 L·min⁻¹ and the arteriovenous difference rises to 15 mL·100 mL⁻¹ blood. Express VO₂ in L·min⁻¹ for both conditions and state how many times greater the exercise VO₂ is compared with rest.

Answer Options

Correct Answer A. Rest VO₂ = 0.25 L·min⁻¹; Exercise VO₂ = 3.0 L·min⁻¹; increase factor = 12
B. Rest VO₂ = 0.25 L·min⁻¹; Exercise VO₂ = 3.0 L·min⁻¹; increase factor = 10
C. Rest VO₂ = 0.25 L·min⁻¹; Exercise VO₂ = 2.5 L·min⁻¹; increase factor = 10
D. Rest VO₂ = 0.5 L·min⁻¹; Exercise VO₂ = 3.0 L·min⁻¹; increase factor = 6
Correct Answer
A
Correct Option:
Rest VO₂ = 0.25 L·min⁻¹; Exercise VO₂ = 3.0 L·min⁻¹; increase factor = 12

About This Question

This is Neco 2024 Biology Question 40. It is one of the objective questions from the 2024 Neco Biology examination.

Difficulty level: Medium .

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