Question

answer these questions
3. The diagram shows some structures in the human neck and thorax

The lining of tube Q has cilia.

What is an important function of the cilia?

4. Which route is taken by air passing into the lungs of a human?

Answer 1

Answer:

3) d :- to move mucus towards the throat

4) d :- trachea. , bronchus , alveolus

5) a :- produce more amount of energy when compared to respiration in plant cell .

Answer 2

The function of cilia in the trachea and bronchi is d) To move mucus towards the throat and the route of air passing into the lungs of a human is d) Trachea-Bronchus-Alveolus.

Explanation:

• The trachea is also lined with cilia, which sweep fluids and foreign particles out of the airway to stay out of the lungs.

• Ciliated mucosa cells move the sheet of contaminated mucus away from the lungs and toward the throat for swallowing.

• The trachea, commonly called the windpipe, is the primary airway to the lungs.

• The trachea divides into the right and left primary bronchi, which branch into smaller and smaller passageways until they terminate in tiny air sacs called alveoli.

• The air travels through the pharynx, passes through your larynx into the trachea, bronchial tubes and finally reaches the alveoli.