Respiration in insects is called direct because

(a) the cells exchange $O_{2} / C O_{2}$ directly with the air in the tubes

(b) the tissues exchange $O_{2} / C O_{2}$ directly with the air in the tubes

(c) the tissues exchange $O_{2} / C O_{2}$ directly with the air outside through body surface

(d) tracheal tubes exchange $O_{2} / C O_{2}$ directly with the haemocoel which then exchange with tissues

Open in App

Solution

(a) Insects have a network of tubes (tracheal tubes) to transport atmospheric air within the body. These openings lead to trachae. The cells exchange $O_{2} / C O_{2}$ directly with the air in the spiracles present on insects body.

Suggest Corrections

Similar questions

\frac{O_{2}}{C O_{2}}

O_{2} / C O_{2}

\frac{O_{2}}{C O_{2}}

C O_{2}

O_{2}

O_{2}

C O_{2}

Join BYJU'S Learning Program