Question

Read the following table and answer the following questions.

Sl. No.	Structure	Location
1.	Tricuspid valve	Right auriculo-ventricular aperture
2.	Guard cells	Epidermis of leaves
3.	Glomerulus	Nephron
4.	Alveoli	Lungs
5.	Acrosome	Above the head of a sperm

Name the structures which are helpful for gaseous exchange.

Answer 1

Alveoli are an important part of the respiratory system whose function it is to exchange oxygen and carbon dioxide molecules to and from the bloodstream. These tiny, balloon-shaped air sacs sit at the very end of the respiratory tree and are arranged in clusters throughout the lungs.