Which of the following are the correct statem | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A, C) Statement $A$ is correct: Cigarette smoking is a major cause of chronic bronchitis,which involves the inflammation of the bronchi.Statement $B$

Vedclass · Accepted Answer

Workers in grinding and stone-breaking industries may suffer from lung fibrosis.

Vedclass · Answer

(A, C) Statement $A$ is correct: Cigarette smoking is a major cause of chronic bronchitis,which involves the inflammation of the bronchi.Statement $B$ is incorrect: The pneumotaxic center in the pons region of the brain primarily moderates the functions of the respiratory rhythm center and can reduce the duration of inspiration.Statement $C$ is correct: In certain industries,especially those involving grinding or stone-breaking,so much dust is produced that the defense mechanism of the body cannot fully cope with the situation. Long-term exposure can give rise to inflammation leading to fibrous proliferation (fibrosis) and thus cause serious lung damage.Statement $D$ is incorrect: Only about $20-25\%$ of $CO_2$ is carried by haemoglobin as carbamino-haemoglobin. About $70\%$ is carried as bicarbonate and $7\%$ is dissolved in plasma.

Which of the following are the correct statements regarding respiration in humans?

Similar Questions

Statement-$I$: All the factors in our body are favourable for the diffusion of $O_2$ from alveoli to tissues and that of $CO_2$ from tissues to alveoli.
Statement-$II$: $A$ sigmoid curve is obtained when the percentage saturation of haemoglobin with $O_2$ is plotted against the $pO_2$.

The total pulmonary ventilation is related to the metabolic rate of the body as:

In most of the thin-leaf mesophytes,the leaf stomata open during the day and close during the night. This pattern is known as:

What is the approximate amount of $CO_2$ eliminated by our lungs per day?

Vedclass Test Series

Exam Paper Generator

Online Exam Module