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Blood leaving the tissues has ________.
- a)high pO2
- b)low pCO2
- c)high pCO2
- d)both high pCO2 and pO2
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
Blood leaving the tissues has ________.a)high pO2b)low pCO2c)high pCO...
The blood in the body leaves the tissues becomes richer in CO2. The main artery(aorta) carries oxygenated blood from the heart to the organs. when this blood passes through the capillaries of body organs, it gives oxygen to the body cells. At the same time, CO2 produced during respiration enters the blood. Thus deoxygenated blood(carrying CO2) leaves tissues and enters vena cava, from where they are again passed to the lungs for oxygenation.
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Blood leaving the tissues has ________.a)high pO2b)low pCO2c)high pCO...
Blood leaving the tissues has high pCO2.
Explanation:
- When blood reaches the tissues, it delivers oxygen (O2) and picks up carbon dioxide (CO2) as a waste product of cellular respiration.
- Oxygen is used by the cells for metabolic processes, and as a result, the oxygen concentration in the tissues decreases, leading to a lower partial pressure of oxygen (pO2).
- On the other hand, carbon dioxide is produced as a byproduct of cellular respiration and accumulates in the tissues, resulting in a higher partial pressure of carbon dioxide (pCO2).
- Therefore, when blood leaves the tissues, it carries a higher concentration of carbon dioxide (pCO2).
- This carbon dioxide-rich blood then returns to the heart through the veins and is eventually pumped to the lungs for elimination.
Why is option 'C' the correct answer?
- Option 'A' (high pO2) is incorrect because the oxygen concentration in the tissues decreases as oxygen is utilized by the cells.
- Option 'B' (low pCO2) is incorrect because carbon dioxide is produced as a waste product in the tissues and accumulates, leading to a higher pCO2.
- Option 'D' (both high pCO2 and pO2) is incorrect because although the pCO2 is high, the pO2 is low in blood leaving the tissues.
- Therefore, the correct answer is option 'C' (high pCO2) as it accurately reflects the increased concentration of carbon dioxide in the blood leaving the tissues.
Explanation:
- When blood reaches the tissues, it delivers oxygen (O2) and picks up carbon dioxide (CO2) as a waste product of cellular respiration.
- Oxygen is used by the cells for metabolic processes, and as a result, the oxygen concentration in the tissues decreases, leading to a lower partial pressure of oxygen (pO2).
- On the other hand, carbon dioxide is produced as a byproduct of cellular respiration and accumulates in the tissues, resulting in a higher partial pressure of carbon dioxide (pCO2).
- Therefore, when blood leaves the tissues, it carries a higher concentration of carbon dioxide (pCO2).
- This carbon dioxide-rich blood then returns to the heart through the veins and is eventually pumped to the lungs for elimination.
Why is option 'C' the correct answer?
- Option 'A' (high pO2) is incorrect because the oxygen concentration in the tissues decreases as oxygen is utilized by the cells.
- Option 'B' (low pCO2) is incorrect because carbon dioxide is produced as a waste product in the tissues and accumulates, leading to a higher pCO2.
- Option 'D' (both high pCO2 and pO2) is incorrect because although the pCO2 is high, the pO2 is low in blood leaving the tissues.
- Therefore, the correct answer is option 'C' (high pCO2) as it accurately reflects the increased concentration of carbon dioxide in the blood leaving the tissues.
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Blood leaving the tissues has ________.a)high pO2b)low pCO2c)high pCO2d)both high pCO2 and pO2Correct answer is option 'C'. Can you explain this answer? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Blood leaving the tissues has ________.a)high pO2b)low pCO2c)high pCO2d)both high pCO2 and pO2Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Blood leaving the tissues has ________.a)high pO2b)low pCO2c)high pCO2d)both high pCO2 and pO2Correct answer is option 'C'. Can you explain this answer?.
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