ANATOMY
CHEST AND CARDIOVASCULAR
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Why does the blood turn dark red as it circulates through the body?
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Because the heart is pumping blood to the brain
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Because Oxygen is replaced with Carbon Dioxide
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Because there are no platelets
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Because Carbon Monoxide is replaced with Oxygen
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Explanation:
Detailed explanation-1: -When the oxygen is released, it is replaced by carbon dioxide, which is then taken back to our lungs and expelled from our bodies as we breathe. When carbon dioxide binds to hemoglobin, the color changes from bright red to dark red with a hint of purple .
Detailed explanation-2: -The iron-containing complex protein known as haemoglobin is present in red blood cells (RBC). The haemoglobin contains red-colored compound heme, because of which the blood looks red in color.
Detailed explanation-3: -Blood is red in colour. Oxygen-rich blood is bright red as it leaves the heart. When it returns to veins without oxygen, it turns blue.
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