Transport of oxygen by blood takes place with the help of________?
Correct answer: A. Erythrocytes
- A. Erythrocytes
- B. Thrombocytes
- C. Lymphocytes
- D. Leucocytes
Explanation
Erythrocytes transport oxygen because their haemoglobin binds oxygen in the lungs and releases it in body tissues. Students may choose leucocytes because they are also blood cells, but leucocytes provide immune defence and do not normally carry oxygen.
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About Human Respiratory System
The human respiratory system conducts air to the alveoli, where oxygen and carbon dioxide exchange occurs across thin respiratory surfaces. Questions cover the nasal passage, trachea, bronchi, lungs, diaphragm and intercostal muscles, ventilation mechanics and gas transport, while distinguishing breathing and gaseous exchange from cellular respiration.
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