7.3
7.4
7.35
7.45
Answer is Wrong!
Answer is Right!
The correct answer is C. 7.35.
Venous blood is slightly acidic, with a pH of 7.35-7.40. This is because it contains more carbon dioxide than arterial blood. Carbon dioxide is a waste product of metabolism, and it is transported in the blood by hemoglobin. When hemoglobin binds to carbon dioxide, it forms a compound called carbaminohemoglobin. Carbaminohemoglobin is a weaker acid than hemoglobin, so it causes the pH of the blood to decrease.
Arterial blood, on the other hand, has a pH of 7.40-7.45. This is because it contains less carbon dioxide than venous blood. Arterial blood is also oxygenated, which makes it more alkaline than venous blood.
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