Free Breathing And Exchange Of Gases (Daily Quiz: 5) NEET Biology Questions & Answers with Detailed Explanation & Full Review

Question-1

Residual air mostly occurs in

(a) bronchus

(b) alveoli

(c) nostrils

(d) trachea

Question-2

The respiratory centre, which regulates respiration, is located in

(a) Vagus nerve

(b) Pons

(c) Cerebral peduncle

(d) Medulla oblongata

Question-3

Listed below are the four respiratory capacities (1 to 4) and four jumbled respiratory volumes of a normal human adult

Respiratory capacities	Respiratory volumes
(i) Residual volume	2500 mL
(ii) Vital capacity	3500 mL
(iii) Inspiratory reserve volume	1200 mL
(iv) Inspiratory capacity	4500 mL

Which one of the following is the correct matching of two capacities and volumes?

(a) (iii) 1200 mL (iv) 2500 mL

(b) (ii) 2500 mL (iii) 4500 mL

(c) (iv) 3500 mL (i) 1200 mL

(d) (i) 4500 mL (ii) 3500 mL

Question-4

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

(a) Neural signals from pneumotoxic centre in pons region of brain can increase the duration of inspiration.

(b) Cigarette smoking may lead to inflammation of bronchi.

(c) Workers in grinding and stone-breaking industries may suffer, from lung fibrosis.

(d) About 90% of carbon dioxide ($CO_2$) is carried by haemoglobin as carbamino- haemoglobin.

Question-5

The figure shows a diagrammatic view of human respiratory system with labels A, B, C and D. Select the option which gives the correct identification and main function and/or characteristics.

(a) B – Pleural membrane – surround ribs on both sides to provide cushion against robbing

(b) A – Trachea – long tube supported by complete cartilaginous rings for conducting inspired air

(c) C – Alveoli – thin walled vascular bag like structures for exchange of gases

(d) D – Lower end of lungs – diaphragm pulls it down during inspiration