Respiratory System of Periplaneta
Important Questions on Respiratory System of Periplaneta
Which factors regulate the opening and closure of spiracles in Periplaneta?

Which structures prevent the trachea from collapsing?

Describe the respiratory system of a Cockroach with the help of a neat and labelled diagram.

Describe the structure of trachea in cockroach.

Inspiration in Cockroach is a passive process and expiration is an active process. Justify.

Which factors regulate the opening of spiracles?

During inspiration which spiracles are kept open and which spiracles are kept closed?

Name the protein that lines the tracheoles of the Cockroach.

What is intima?

Name the chitinous ring that encircles the spiracle of a cockroach.

Why is the respiratory system of cockroach is called Polypneustic or holopneustic?

What are trichomes? Write their functions.

How many spiracles are present in the cockroach? Mention their location.

Why does the blood of Periplaneta not help in respiration?

