NEET Zoology Respiration In Plants Class 11 Questions

The partial pressure of oxygen in systemic veins in a healthy man is

Choose the incorrect statement regarding the enzyme carbonic anhydrase:

Read the following statements : (a) Respiratory rhythm centre is present in medulla region. (b) Chemosensitive area is highly sensitive to CO₂ and hydrogen ions. (c) The role of oxygen in the regulation of respiratory rhythm is quite significant. (d) Pneumotaxic centre is present in pons region. (e) Receptors associated with aortic arch and carotid artery can recognise changes in CO₂ and H⁺ concentration. How many statements are correct about regulation of respiration?

Which one of the following is the correct statement for respiration in humans?