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JIPMER2005BotanyAnimal Kingdom

Moulting hormone is secreted by

Options

  1. Acorpora cardiacum
  2. Bprothoracic gland
  3. Ccorpora allata
  4. Dcorpora allata

Correct answer

B. prothoracic gland

Step-by-step solution

Moulting hormone (ecdysone) is secreted by prothoracic gland. These glands are paired, bilateral sheet of cells in the thorax. In Periplaneta, this endocrine gland is X -shaped. This gland is stimulated by prothoracicotropic hormone. Ecdysone, by causing transformation from larval to pupal stage, initiates post embryonic growth in insects.

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