Transport and Exchange of Gases

Carbonic anhydrase occurs in

The carbon dioxide is transported via blood to lungs as:

Oxygen dissociation curve of haemoglobin is

In the tissues, maximum gaseous exchange occurs due to

Oxygen is released from the blood capillaries into the body tissues because

The process of diffusion of oxygen and carbon dioxide between the blood and tissues is called internal respiration.

Mark the incorrect statement

Blood analysis of a patient reveals an unusually high quantity of carboxyhaemoglobin content. Which of the following conclusions is most likely to be correct ? The patient has been inhaling polluted air containing unusually high content of

Which ONE of the following chemicals serves as a substrate for carbonic anhydrase?

Justify that partial pressure helps in gaseous exchange during respiration.

The exchange of gases in the alveoli takes place through which process?

What are the factors that affect the rate of diffusion during the exchange of gases by human respiratory system?

In humans, the exchange of gases occurs

What is the maximum number of oxygen atoms that a molecule of haemoglobin can bind?

Left side shift of oxygen-haemoglobin dissociation curve occurs during

${\mathrm{CO}}_2+{\mathrm{H}}_2\mathrm{O}⟶{\mathrm{H}}_2{\mathrm{CO}}_3$ 

The number of ${\mathrm{H}}_2{\mathrm{CO}}_3$ molecules released in the above reaction in the absence and presence of Carbonic anhydrase enzyme respectively are-

A sigmoid curve is obtained when percentage saturation of hemoglobin $\left(\mathrm{Hb}\right)$ with oxygen is plotted against the ${\mathrm{PO}}_2$ as indicated below:

If a patient who is a hypothermic with a body temperature of $30°\mathrm{C}$ the curve shifts towards

Statement I： The amount of ${\mathrm{CO}}_2$ that can diffuse through the membrane, per unit difference in the partial pressure, is much higher than that of ${\mathrm{O}}_2.$
Statement II： The solubility of ${\mathrm{CO}}_2$ is $20$ to $25$ times higher than that of ${\mathrm{O}}_2.$

Left side shift of oxygen-haemoglobin dissociation curve occurs during