Question:
Which of the following is tanning hormone?
Which of the following is tanning hormone?
Show Hint
Remember:
- Ecdysone = Molting initiator.
- Juvenile Hormone = Metamorphosis inhibitor (status quo).
- Bursicon = Cuticle tanning/hardening agent.
- Ecdysone = Molting initiator.
- Juvenile Hormone = Metamorphosis inhibitor (status quo).
- Bursicon = Cuticle tanning/hardening agent.
Updated On: Aug 18, 2026
- Brain hormone
- Ecdysone
- Bursicon
- Juvenile hormone
Show Solution
Verified By Collegedunia
The Correct Option is C
Solution and Explanation
Step 1: Understanding the Concept:
Sclerotization (tanning) is the process of hardening and darkening the new cuticle after molting (ecdysis) to make it rigid and functional.
Step 2: Detailed Explanation:
Bursicon is a neurohormone (neuropeptide) produced by the perisympathetic organs of insects.
It is released immediately after ecdysis and triggers the biochemical pathways responsible for cuticle tanning (cross-linking of proteins and chitin) and wing expansion in newly eclosed adults.
Ecdysone triggers the molting process, while Juvenile Hormone (JH) determines the nature of the molt.
Step 3: Final Answer:
The tanning hormone is Bursicon, which corresponds to option (C).
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