Waec Model Questions Vol1 2020 Biology Question 19

Practice objective / multiple choice question 19 from the 2020 Waec Model Questions Vol1 Biology examination.

Waec Model Questions Vol1 2020 Biology Objective / Multiple Choice Medium Difficulty
Question 19 WAEC_MODEL_QUESTIONS_VOL1 • 2020 • BIOLOGY • objective

During a 5‑minute run, a student's oxygen consumption is measured at 2.5 L·min⁻¹ and the respiratory quotient (RQ) is 0.85. Assuming that an RQ of 1.0 indicates pure carbohydrate oxidation and an RQ of 0.70 indicates pure fat oxidation, calculate the percentage contribution of carbohydrate and fat to the energy supplied during the run.

Answer Options

A. 60% carbohydrate, 40% fat
B. 70% carbohydrate, 30% fat
Correct Answer C. 50% carbohydrate, 50% fat
D. 40% carbohydrate, 60% fat
Correct Answer
C
Correct Option:
50% carbohydrate, 50% fat

About This Question

This is Waec Model Questions Vol1 2020 Biology Question 19. It is a objective / multiple choice question from the 2020 Waec Model Questions Vol1 Biology examination.

Difficulty level: Medium .

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