Igcse Model Questions Vol1 2020 Biology Question 11

Practice objective / multiple choice question 11 from the 2020 Igcse Model Questions Vol1 Biology examination.

Igcse Model Questions Vol1 2020 Biology Objective / Multiple Choice Medium Difficulty
Question 11 IGCSE_MODEL_QUESTIONS_VOL1 • 2020 • BIOLOGY • objective

During a 5‑minute period of moderate exercise, a student records that \(1.5\ \text{L}\) of O\(_2\) are taken in and \(1.2\ \text{L}\) of CO\(_2\) are expelled. At the same time the breathing rate rises to \(20\) breaths per minute and the tidal volume is \(600\ \text{mL}\). Assuming the fraction of each breath that is anatomical dead space remains constant, determine the volume of dead space per breath (in millilitres).

Answer Options

A. 350 mL
Correct Answer B. 300 mL
C. 250 mL
D. 400 mL
Correct Answer
B
Correct Option:
300 mL

About This Question

This is Igcse Model Questions Vol1 2020 Biology Question 11. It is one of the objective questions from the 2020 Igcse Model Questions Vol1 Biology examination.

Difficulty level: Medium .

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