Question

Breathing rate in humans is fast. Is there a sufficient time in lungs, for oxygen to be absorbed and for the carbon dioxide to be released ? Justify your answer

Answer 1

yes. The the lungs has sufficient time for the process of respiration because

* the lungs is designed like a balloon like structure with rich blood supply .this facilitates the gaseous exchange

* the lungs always keeps a residual volume of air in the capillaries to ensue that the gaseous exchange it down quickly