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NEET Biology MCQs | Human Respiratory System | With Explanation

NEET Biology MCQs – Human Respiratory System This post is specially designed for NEET (UG) aspirants. All questions are NCERT-based and provided with correct answers and easy explanations. Q1. In humans, the exchange of gases takes place in: A. Trachea B. Bronchus C. Alveoli D. Larynx ✅ Correct Answer: C. Alveoli Explanation: Alveoli are thin-walled air sacs surrounded by capillaries where oxygen and carbon dioxide exchange occurs. Q2. What is the main function of haemoglobin? A. Digestion of food B. Transport of oxygen C. Blood clotting D. Immunity ✅ Correct Answer: B. Transport of oxygen Explanation: Haemoglobin present in RBCs binds with oxygen in the lungs and transports it to body tissues. Q3. Which part of the brain controls respiration? A. Cerebrum B. Cerebellum C. Medulla oblongata D. Hypothalamus ✅ Correct Answer: C. Medulla oblongata Explanation: The medulla oblongata regulates involuntary actions such as breathing and heart rate....