Question:
Chitin is absent in:
Chitin is absent in:
Show Hint
Remember:
- Epicuticle = Non-chitinous (Lipids + Proteins).
- Procuticle (Exocuticle + Endocuticle) = Chitin-protein complex.
- Epicuticle = Non-chitinous (Lipids + Proteins).
- Procuticle (Exocuticle + Endocuticle) = Chitin-protein complex.
Updated On: Aug 18, 2026
- Epicuticle
- Procuticle
- Exocuticle
- Enocuticle
Show Solution
Verified By Collegedunia
The Correct Option is A
Solution and Explanation
Step 1: Understanding the Concept:
The insect exoskeleton is layered, with each layer possessing a distinct chemical composition to serve functions ranging from structural support to waterproofing.
Step 2: Detailed Explanation:
The insect cuticle is divided into:
- Epicuticle: The thin, outermost protective layer. It is entirely non-chitinous, composed of lipids, proteins, and polyphenols.
- Procuticle: The thicker, inner structural layer, which is further divided into exocuticle and endocuticle (misspelled as "enocuticle" in the paper). The procuticle is highly rich in chitin, a nitrogenous polysaccharide, cross-linked with proteins.
Therefore, chitin is completely absent in the epicuticle.
Step 3: Final Answer:
Chitin is absent in the Epicuticle, which is option (A).
Was this answer helpful?
0
0
Top ICAR AIEEA Entomology And Nematology Questions
- Pebrine is:
(A) Disease of silkworm
(B) Caused by protozoa
(C) Larva on death immediately emit foul smell
(D) Tiny black spots appear on larval integument
Choose the correct answer from the options given below: - Which among the following is the genus of lac insect?
- Garima is the famous variety of :
- Which nutrient plays the main role in gene expression and regulation?
- Iron deficiency is common in which soil?
View More Questions
Top ICAR AIEEA Anatomy Questions
- A form of viviparity in which the female gives birth to larvae instead of depositing eggs is
- Male copulatory organ in insects is known as
Match List-I with List-II
List-I List-II A Plecoptera I Stonefly B Mecoptera II Scorpionfly C Neuroptera III Earwig D Dermaptera IV Antlion Choose the correct answer from the options given below:
- Three segmented antennae located in deep grooves is the characteristic feature of order
(A) Protura
(B) Diplura
(C) Collembola
(D) Siphonaptera
Choose the correct answer from the options given below: - Given below are two statements:
Statement (I): Holometabolous insects have complete metamorphosis and lack pupal stage in their development
Statement (II): Hemietabolous insects have incomplete metamorphosis with pupal stage in their development
In light of the above statements, choose the most appropriate answer from the options given below:
View More Questions
Top ICAR AIEEA Questions
- Which of the following statements is false?
- Which of the following is an example of an inventory?
- According to Adam Smith, productivity gains could be brought about through .
- The supply curve for an artificially scarce good is .
- Which of the following would not be considered an opportunity cost of paid employment?
View More Questions