MCQ Practice test – Chapter 14 -Breathing and Exchange of Gases

Which of the following increases area of thoracic cavity during inhalation?

Carbon dioxide is carried in the blood, mainly as

Which among the following serves the function of lung surfactant?

At higher altitudes, the air becomes rarer and amount of oxygen per liter of air decreases.

Approximately seventy percent of carbon-dioxide absorbed by the blood will be transported to the lungs.

During inspiration, the diaphragm

Name the chronic respiratory disorder caused mainly by cigarette smoking.

A person breathes in some volume of air by forced inspiration after having a forced expiration. This quantity of air taken in is _______________.

When carbon dioxide concentration in blood increases, breathing becomes ............ and ...........

Increase in body temperature makes oxygen haemoglobin curve to shift?

Which of the following is the correct path of oxygen in humans during inhalation?

How many statements are wrong about asthma?

Select the correct statement about oxygen transport in blood.

Read the following statements carefully and select the incorrect statement

The lungs are protected by two membranes called ________

Lungs made up of which structures

Carbon dioxide generated in the tissues is carried in venous blood primarily as

Which of the following happens with the increase in body temperature due to enhanced metabolic activities in the human body?

Which of the following symptom is associated with disease emphysema?

If a person exhales out forcefully by applying all his efforts, what will be the pulmonary volume inhaled by him immediately under the normal condition without applying any extra effort?