NEETZoologyBreathing and Exchange of Gases
Read the following statements and choose the follwoing option: 1. Respiration involves pulmonary ventilation 2. Expiration occurs when atmospheric air is drawn in 3. Inspiration is generated by the relaxation of diaphragm 4. The lungs are situated in the thoracic chamber which is anatomically an air-tight chamber.
Options
- AOnly 1 and 4 are correct
- BOnly 2 is correct
- CBoth 2 and 3 are correct
- DOnly 3 is correct
Correct answer
A. Only 1 and 4 are correct
Step-by-step solution
Respiration involves breathing or pulmonary ventilation by which atmospheric air is drawn in and CO2 rich alveolar air is released out. The lungs are situated in the thoracic chamber which is anatomically an air-tight chamber.