MP Board notes-Respiration

Respiration in grasshopper(by trachea)

The process of breathing in insects such as grasshopper and cockroach is very slow. Insects do not breathe like human beings.In insects respiration takes place through tracheae. Tracheae are tube like structures that open on the sides of their body through tiny holes called spiracles. Each trachea is further divided into fine tubules called tracheoles which reach all the parts of the body. During respiration, the oxygen rich air enter in the body of these insects through spiracles and reach all the cells of the body by passing through network of trachea and tracheoles. Thus, every cell gets oxygen directly. In the cells oxygen gas is used up to break the food particles. During breaking up of food a large amount of carbon dioxide gas and energy is produced. The carbon dioxide produced during respiration is released out of the body through the same network.

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