The maximum amount of water vapour that the atmosphere can hold at a given temperature is known as:

Analogy type question:
$(1)$ Inspiratory Reserve Volume $(IRV)$: $2500$ to $3000 \ mL$ :: Inspiratory Capacity $(IC = TV + IRV)$: ........
$(2)$ $CO_2$ by hemoglobin: Carbamino-hemoglobin form :: Oxygen binds with hemoglobin: ........

Arrange the given steps of the respiration mechanism in the order they occur in the human body:
$I.$ Breathing or pulmonary ventilation
$II.$ Diffusion of $O_2$ and $CO_2$ between blood and tissues
$III.$ Transport of gases by blood
$IV.$ Utilisation of $O_2$ by cells
$V.$ Diffusion of $O_2$ and $CO_2$ across the alveolar membrane
Choose the correct option.

$A$: When a person starts doing exercise,the rate and depth of breathing increase even before there are changes in $pO_2$,$pCO_2$,or $H^+$ concentration.
$R$: The main stimulus for these quick changes is due to input from the proprioreceptors,which monitor movements of joints and muscles.

Which of the following is not the function of the conducting part of the respiratory system?

The scientist who proposed that the production of glycolic acid in guard cells is an important factor in stomatal opening is: