Question

Match the following:

$\begin{array}{cccc}& \text{Column I}& & \text{Column II}\\ \text{A}& \text{Alveoli}& \text{1}& \text{Also called wind pipe}\\ \text{B}& \text{Trachea}& \text{2}& \text{Provides passage to both air and food}\\ \text{C}& \text{Pharynx}& \text{3}& \text{Taking in of air}\\ \text{D}& \text{Inhalation}& \text{4}& \text{Exchange of gases}\end{array}$

• A. A-3, B-1, C-2, D-4
• B. A-4, B-1, C-2, D-3
• C. A-2, B-4, C-1, D-3
• D. A-1, B-2, C-3, D-4

Answer 1

The correct option is B A-4, B-1, C-2, D-3

$\bullet$ Trachea is also known as wind pipe. It helps in the passage of oxygen rich air towards the lungs from the nose.

$\bullet$ Pharynx provides passage to both food and air. The wind pipe is present in front of the food pipe and there is a lid at the beginning of wind pipe which closes during the passage of food and prevents the entry of food particles into wind pipe.

$\bullet$ Alveoli - Lungs are made up of many small compartments, called alveoli. They help in exchange of gases.

$\bullet$ Inhalation is the taking in of oxygen rich air through the nose and passing it towards the lungs through the trachea.