The state, during which the respiratory centre is inhibited, is termed as

In which part of the respiratory systems the air is filtered ?

Respiratory rhythm centre is present in

Chemosensitive area of respiratory centre in medulla is affected by

Which of these are respiratory poisons or inhibitors of ETC?

Higher respiratory quotient is in which among the following?

The centres that regulate respiratory rhythm are located in:

In an ecosystem the rate of production of organic matter during photosynthesis is termed as:

A gas undergoes on a change of state during which 100 J of heat is supplied to it and it does 20 J of work. The system is brought back to its original state through a process during which 20 J of heat is released by the gas. What is the work done by the gas in the second process ?

Name the areas in a woody stem through which respiratory exchange of gases takes place.