A

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Q. Which of the following carries oxygen to various parts of human body?

  • (A) Red blood cells
  • (B) White blood cells
  • (C) Plasma
  • (D) Nerves
  • Correct Answer - Option(A)
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Explanation by: Admin

Red blood cells (RBCs) carry oxygen from the lungs to various parts of the body and bring back carbon dioxide to the lungs for exhalation. They contain hemoglobin, a protein that binds to oxygen.

Why other options are incorrect:

  • (B) White blood cells – These are involved in immune defense, not oxygen transport.
  • (C) Plasma – Plasma carries nutrients, hormones, and waste products, but not oxygen.
  • (D) Nerves – Nerves transmit electrical signals, not oxygen.

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