NEET Biology Breathing And Exchange Of Gases Based Practice Questions & Answers with Viewers Discussion and Detailed Explanation

Question & Answer Discuss:

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