Arterial blood contains _________ of CO2 per 100 ml of blood
Correct answer: D. 50 ml
- A. 54 ml
- B. 60 ml
- C. 64 ml
- D. 50 ml
Explanation
Arterial blood carries about 48 ml of carbon dioxide per 100 ml of blood, commonly rounded to 50 ml per 100 ml in textbook questions. This is less than venous blood because body tissues add carbon dioxide to the blood. Students may choose 60 or 64 ml by confusing arterial CO2 content with the higher CO2 content of venous blood.
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