Under normal physical conditions in human beings every 100 ml oxygenated blood can deliver____ml of O2 to the tissues.
- 2 ml
- 5 ml
- 4 ml
- 10 ml
The Correct Option is B
Solution and Explanation
In human physiology, oxygen delivery to tissues is a critical function of the circulatory system. When blood is oxygenated in the lungs, each 100 ml of this oxygen-rich blood has the capability to deliver oxygen to various tissues throughout the body.
This oxygen delivery process is primarily facilitated by hemoglobin, the protein in red blood cells that binds to oxygen. Under normal physical conditions:
- The typical arterial oxygen content is approximately 20 ml of O2 per 100 ml of blood.
- When the blood reaches the tissues, it releases approximately 5 ml of O2 per 100 ml of blood.
Thus, every 100 ml of oxygenated blood can deliver about 5 ml of O2 to the tissues, aligning with the physiological characteristics of hemoglobin and the oxygen transport process.
Correct Answer: 5 ml
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Concepts Used:
Breathing and Exchange of Gases
A metabolic process, which is carried out by all living organisms including plants, animals, and humans for the production of energy and to stay alive is Respiration. Except for required anaerobes, every other organism from amoeba to humans needs oxygen for survival. And evolution has reported a number of systems that allows the exchange of gases in organisms.
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- Aerobic respiration — to produce energy, it occurs in the presence of oxygen
- Anaerobic respiration — to produce energy, occurs in the absence of oxygen
Breathing can be simply derived as the process of inhaling oxygen gas from the atmosphere and exhaling the carbon dioxide gas back into the atmosphere is termed breathing and the process is commonly known as respiration.
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