Find out the incorrect statement:
Correct answer: D. Exhaled air is comparatively drier and inhaled air
- A. Inspired air contains more O2 than exhaled air:
- B. Expired air has 100 times greater CO2 as inspired air
- C. Amount of N2 is equal in both inhaled and exhaled air
- D. Exhaled air is comparatively drier and inhaled air
Explanation
Exhaled air has saturated water contents as compared to inhaled air which has variable water contents.
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About Digestion
The human digestive system covers the organs from mouth to anus, the movement of food, and the mechanical and chemical breakdown of carbohydrates, proteins and fats. It also includes the roles of digestive enzymes, bile, absorption through intestinal villi, and the assimilation of nutrients by body cells.
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