Multiple Choice
Which component of the blood is primarily responsible for transporting oxygen to body tissues?
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17. The Blood
Erythrocytes: Hemoglobin
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Which mineral is essential for healthy red blood cells because it is a key component of hemoglobin for oxygen transport?
A
Iron (Fe)
B
Sodium (Na)
C
Calcium (Ca)
D
Iodine (I)
Verified step by step guidance1
Understand the role of hemoglobin in red blood cells: Hemoglobin is a protein responsible for carrying oxygen from the lungs to tissues throughout the body.
Recognize that hemoglobin contains a specific mineral that binds oxygen molecules, enabling oxygen transport.
Identify that the mineral essential for this oxygen-binding function is iron (Fe), which is a key component of the heme group within hemoglobin.
Compare the other minerals listed (Sodium, Calcium, Iodine) and note that while they have important physiological roles, they are not involved in oxygen transport via hemoglobin.
Conclude that iron (Fe) is the essential mineral for healthy red blood cells due to its critical role in oxygen transport.
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