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- Subject
- Health & Nutritionphysical-education › health-nutrition
- Published
- 14 Jan 2025
- Last updated
- 28 May 2026
Explanation
Oxygen plays a crucial role in cleansing the blood by enabling the removal of waste gases and supporting cellular respiration, whereas hydrogen, nitrogen, and carbon dioxide do not perform this function.
More Health & Nutrition MCQs
Practice related questions from the same subject.
- 1.What is the estimated total number of heartbeats in a human heart's lifetime?
- 2.Minerals are classified into two categories: Macro minerals and ____________ minerals. What is the correct term for the second category?
- 3.What is another term commonly used to refer to amino acids?
- 4.What is the approximate percentage of water present in the body of an average adult human?
- 5.What is the typical breathing rate for a human being?
- 6.What does a Body Mass Index (BMI) value of 25 indicate?
- 7.Which illness is caused by a lack of Vitamin C in the diet?
- 8.How many essential amino acids are required in the human diet?
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