The body of an insect is covered by a protective __________________ formed from chitin and protein. Depending upon its precise composition and thickness, the cuticle may be soft and flexible or hard and rigid; according to requirements, it may or may not be permeable or waterproof:

Related Mcqs:

1. The body wall of insect which includes cuticle, epidermis and basement membrane is__________________?

   A. Integument
   B. Exoskeleton
   C. Internal skeleton
   D. None of the above

2. Function of Exo cuticle insect is_________________?

   A. Rigidity of body parts
   B. impermeability of water
   C. Prevent evaporation
   D. Toughness and flexibility

3. It is a nitrogenous polysaccharides which are more than 50% of substance of cuticle is called___________________?

   A. Sclerotion
   B. Resilin
   C. Chitin
   D. Cuticulin

4. The process of periodic shedding of hard secretion cuticle which occurs during developmental stages of insects is called_______________?

   A. Moulting
   B. Ecdysis
   C. Exuvium
   D. Moulting and Ecdysis

5. Function of endo cuticle is________________________?

   A. Prevent evaporation
   B. Rigidity of body parts
   C. Extensiblity of integument and flexibility
   D. Impermeability of water

6. The lateral selertized region of insect body is called_________________?

   A. Pleuron
   B. Tergum
   C. Sternum
   D. None of the above

7. The dorsal sclerotized region of insect body is called__________________?

   A. Tergum
   B. Pleuron
   C. Sternum
   D. None of the above

8. The ventral selerotized region of insect body is called___________________?

   A. Pleuron
   B. Tergum
   C. Sternum
   D. None of the above

9. The long axis of head is horizontal and in line with insect body, mouth parts directed forward is type of head_______________?

   A. Prognathous
   B. Hypognathous
   C. Opisthognathous
   D. Opis thosynchous

10. Insect body divided into external grooves called Sutures___________?

    A. Sutures
    B. Somites
    C. Sclerite
    D. Acron