JAMB Biology 2008 Objective — Question 20
Question 20 of 50 from the Joint Admissions and Matriculation Board (JAMB) Biology 2008 Objective paper, with the correct answer and a full explanation.
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The exhaled air contains more
- A. oxygen and less water vapour
- B. CO2, H2O and heat than inhaled airCorrect
- C. nitrogen only
- D. less CO2 than inhaled air
Explanation
The exhaled air contains more CO2, H2O and heat than inhaled air. This is because these substances are produced as by-products of cellular respiration. C6H12O6 + 6O2 -> 6CO2 + 6H2O + Energy.
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