NCERT Solutions for Chapter: Breathing and Exchange of Gases, Exercise 1: MULTIPLE CHOICE QUESTIONS

Which of the following statements is incorrect regarding the respiratory system?

The incidence of Emphysema, a respiratory disorder, is high in cigarette smokers. In such cases:

The respiratory process is regulated by certain specialized centres in the brain. One of the following listed centres can reduce the inspiratory duration upon stimulation.

CO₂ dissociates from carbamino haemoglobin when:

In breathing movements, air volume can be estimated by:

From the following relationships between respiratory volume and capacities mark the correct answer:

i. Inspiratory capacity (IC) $=$ Tidal Volume $+$ Residual Volume

ii. Vital Capacity (VC) $=$Tidal Volume (TV) $+$ Inspiratory Reserve Volume (IRV) $+$ Expiratory Reserve Volume (ERV)

iii. Residual Volume (RV) $=$Vital Capacity (VC) $-$ Inspiratory Reserve Volume (IRV)

iv. Tidal Volume (TV)$=$Inspiratory Capacity (IC)$-$Inspiratory Reserve Volume (IRV)

The oxygen - haemoglobin dissociation curve will show a right shift in case of:

Match the following and mark the correct options.