Which of the following is the main function of RBCs?
A
To fight diseases in the body
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B
To carry oxygen to different parts of the body
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C
To increase levels of WBC
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D
To arrest bleeding
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Solution
The correct option is A To carry oxygen to different parts of the body Red blood cells (RBCs), also known as erythrocytes, have two main functions: to pick up oxygen from the lungs and deliver it to tissues in the body and to pick up carbon dioxide from other body tissues and unload it in the lungs.