IGNOU MZOE 005 2026 - Explain the physiology of gaseous exchange in terrestrial and aquatic

Question

Explain the physiology of gaseous exchange in terrestrial and aquatic insects.

31 Jan 2026

Answer :

Word Count : 289

In insects, gaseous exchange is essential for supplying oxygen to tissues and removing carbon dioxide. Terrestrial insects primarily rely on a tracheal system, which consists of a network of air-filled tubes called tracheae that branch into finer tracheoles reaching individual cells. Air enters the tracheal system through openings called spiracles, which can open and close to regulate water loss and gas exchange. Diffusion is the main mechanism for gas movement in small insects, while larger insects may employ

_______ _____ _________ __________ _______ ______ ___ ___ ________ ______.
______ ______ ______ __________ _______ _____.
_______ ___ _______ ______ _______ ______ ______ _______ ___.
_________ ________ ___ _________ __________ __________.
____ ________ __________ ____ _________.
_______ ________ ____ ______ _________ __________ ________ ________ _________ _______ _________.
________ __________ __________ _______ __________ ________ ______ __________ ________ ________.
_____ _______ _________ _________ ________ __________.
_______ _______ ___ ___ __________ __________.
_______ ________ __________ ________ _____ ____ _____ __________ __________.
_______ __________ ___ ____ ________ ____ ________ _________ _____ ___ ___.
________ _________ ____ _______ ________ __________ __________ _____ ____.
_______ ____ ___ ___ ___ ____ _____.
_____ ___ _________ ____ _____ __________ __________.
_________ ___ _____ ________ __________ _____ ___ _____ ________ _____.
__________ _______ _______ ____ _____ ______ ________ _______.
__________ _____ ___ _____ ___.
____ _______ _______ _____ ______ __________ __________ ______.
________ _____ _______ _______ _______ _____ _________ ____ _____ ______ _________ ___.
_________ _______ __________ ____ _______.
______ ________ ______ ________ __________ ____ ___ ______ _________ __________.
_______ _____ __________ __________ ________.
______ __________ ___ ___ ________ _________ __________ ______.
_______ ______ ______ ________ ___.
________ ________ _____ ____ ______.
________ _________ ________ _______ ____ _________ _______ ____.
___ ____ ___ _________ _________ ________ ______ ______.
_________ _________.

IGNOU ACADEMY

Your IGNOU journey, made easier.

Solved Assignments
Study Notes
Guess Papers
Question Papers

Call Us WhatsApp

STUDY • PREPARE • SUCCEED

Skip in 10

IGNOU Solved Assignments Assignments Ignou Projects Project Previous Year Solved Exam Papers Notes Notes Sample Question Papers Sample Question Papers