Neco 2021 Biology Question 24

Practice objective / multiple choice question 24 from the 2021 Neco Biology examination.

Neco 2021 Biology Objective / Multiple Choice Medium Difficulty
Question 24 NECO • 2021 • BIOLOGY • objective

At rest a person consumes \(250\) mL of \(\mathrm{O_2}\) per minute. During vigorous exercise the \(\mathrm{O_2}\) consumption rises to \(1.5\) L per minute. If the respiratory quotient (RQ) is \(0.8\) in both conditions, determine (a) the volume of \(\mathrm{CO_2}\) produced per minute at rest and during exercise, and (b) the total caloric expenditure per day assuming the person rests for 16 h and exercises for 2 h, using the conversion \(1\) L of \(\mathrm{O_2}\) ≈ \(5\) kcal.

Answer Options

A. Rest CO₂ ≈ 0.15 L min⁻¹; Exercise CO₂ ≈ 1.5 L min⁻¹; Total energy ≈ 2300 kcal per day
Correct Answer B. Rest CO₂ ≈ 0.20 L min⁻¹; Exercise CO₂ ≈ 1.2 L min⁻¹; Total energy ≈ 2100 kcal per day
C. Rest CO₂ ≈ 0.25 L min⁻¹; Exercise CO₂ ≈ 1.0 L min⁻¹; Total energy ≈ 1900 kcal per day
D. Rest CO₂ ≈ 0.30 L min⁻¹; Exercise CO₂ ≈ 1.8 L min⁻¹; Total energy ≈ 2500 kcal per day
Correct Answer
B
Correct Option:
Rest CO₂ ≈ 0.20 L min⁻¹; Exercise CO₂ ≈ 1.2 L min⁻¹; Total energy ≈ 2100 kcal per day

About This Question

This is Neco 2021 Biology Question 24. It is one of the objective questions from the 2021 Neco Biology examination.

Difficulty level: Medium .

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