Respiratory Adaptations: Altitude and Diving Practice Questions
20 free Respiratory Adaptations: Altitude and Diving practice questions for the NCERT Biology, each with the correct answer and a detailed explanation. Open any question below, or take the full set as an interactive quiz.
Questions
20 questions
All Respiratory Adaptations: Altitude and Diving questions
- Q1. At high altitudes, the primary respiratory challenge faced by humans is:
- Q2. One immediate physiological response to high altitude exposure is:
- Q3. Which blood adaptation helps people living at high altitudes transport more oxygen?
- Q4. Erythropoietin secretion increases at high altitude primarily to:
- Q5. Which respiratory adaptation is commonly seen in native high-altitude mammals?
- Q6. Underwater respiration in fishes primarily occurs through:
- Q7. Which structural feature of gills increases efficiency of oxygen exchange?
- Q8. Counter-current flow in fish gills refers to:
- Q9. Why is oxygen extraction more difficult underwater than in air?
- Q10. Which adaptation allows aquatic mammals like whales to remain submerged for long durations?
- Q11. In underwater diving mammals, oxygen conservation is aided by:
- Q12. Which factor primarily triggers altitude sickness in humans?
- Q13. Fish ventilate their gills mainly by:
- Q14. Which adaptation improves oxygen diffusion in high-altitude lungs?
- Q15. Amphibians respire underwater mainly through:
- Q16. Which adaptation reduces oxygen demand during deep diving in seals?
- Q17. Why are gills inefficient for respiration on land?
- Q18. Which adaptation helps birds flying at high altitudes obtain sufficient oxygen?
- Q19. In fishes, oxygenated blood from gills is directly supplied to:
- Q20. Which statement best summarizes respiratory adaptations in high altitude and underwater environments?