Haemoglobin in man increases oxygen carrying capicity by:
Correct answer: B. 75 times
- A. 80 times
- B. 75 times
- C. 90 times
- D. 100 times
Explanation
Hemoglobin in humans increases the oxygen-carrying capacity of the blood by about 75 times. Hemoglobin is a protein found in red blood cells that binds to oxygen in the lungs and releases it to tissues throughout the body. Its ability to reversibly bind oxygen allows for efficient transport of oxygen from the lungs to tissues, enhancing the body's oxygen-carrying capacity.
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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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