Neco Model Questions Vol1 2019 Biology Question 4

Practice essay / theory question 4 from the 2019 Neco Model Questions Vol1 Biology examination. This question covers Respiration .

Neco Model Questions Vol1 2019 Biology Essay / Theory

Topic: Respiration

Question 4 NECO_MODEL_QUESTIONS_VOL1 • 2019 • BIOLOGY • essay

A 30‑year‑old woman is studied at rest and during moderate exercise. The following respiratory data are recorded: - At rest: tidal volume = 500 mL, respiratory rate = 12 breaths·min⁻¹. - During moderate exercise: tidal volume = 800 mL, respiratory rate = 20 breaths·min⁻¹. Answer the following:

Question Parts

( a )

Calculate the minute ventilation (in litres per minute) at rest and during moderate exercise.

( b )

Explain why minute ventilation increases during moderate exercise, linking your answer to changes in metabolic demand.

( c )

At high altitude the barometric pressure falls, reducing the partial pressure of oxygen (Pₒ₂). Discuss two physiological adjustments the body makes to maintain adequate oxygenation.

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About This Question

This is Neco Model Questions Vol1 2019 Biology Question 4. It is one of the essay questions from the 2019 Neco Model Questions Vol1 Biology examination.

The question covers Respiration .

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