The iron containing haemoglobin pigment is a

A. protein

B. polysaccharide

C. enzyme

D. none of these

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  1. Diaphragm is characteristic of
  2. The carbon dioxide pressure in the lung capillaries is
  3. The oxygen content of expired air in man is
  4. The term used to denote the difference in volume between the total lung capacity and the vital capacity…
  5. The functional unit of the lung is
  6. During inspiration in mammals, the diaphragm shall
  7. The opening into the wind pipe or trachea is called
  8. A normal man respires in a minute
  9. Oxygen will diffuse through a membrane only if it is
  10. The regulatory centre for respiration is situated in the
  11. The iron containing haemoglobin pigment is a
  12. The vibrations of which of these membranes produces vocal sounds?
  13. Colour of oxyhaemoglobin is
  14. Emphysema is a respiratory disease in which
  15. Tissue respiration is a process by which
  16. The medullary inspiratory centre is always under direct control of
  17. The "mountain sickness" in persons climbing to high attitudes without the aid of oxygen cylinders is…
  18. Among the following, the maximum amount of usable energy is released per-molecule of glucose by
  19. The membrane covering the lungs is
  20. The respiratory tubes devoid of car-tilagenous rings are
  21. Ciliated epithelium in the trachea of mammals helps in
  22. Oxygen is transported to every cell of the body through
  23. The metal associated with haemoglobin is
  24. The capacity of lungs for air in a healthy man is about
  25. In frog, the alveoli are surrounded by
  26. The impulses reaching voluntary muscles for forced breathing originate from
  27. The respiratory disease immediately related to cigarette smoking is
  28. The rate of respiration is lowest at
  29. Which of the following can respire in total absence of air (anoxyliosis)?
  30. The greatest volume of air that can be expired after a maximum inspiratory affect, is its