AIIMS Biology Breathing And Exchange Of Gases Class 11 Questions

Oxygen binding to haemoglobin in blood is

Chemosensitive area of respiratory centre in medulla is affected by

Assertion: Emphysema is a chronic disorder in which alveolar walls are damaged. Reason: Emphysema is closely related to cigarette smoking.

Which of the following match is correct?

Assertion (A) : Torsion can be seen in ctenidium. Reason (R) : Ctenidium acts as the respiratory organ.

Severe Acute Respiratory Syndrome (SARS)

Assertion : Severe Acute Respiratory Syndrome (SARS) originated in China. Reason : China is the most populated country of the world.

The respiratory centre in the brain is stimulated by:

Pneumotaxic and inhibitory centres are associated with