NEET2009BotanyAnimal KingdomActual
Malpighian tubules are
Options
- Aexcretory organs of insects
- Bexcretory organs of frog
- Crespiratory organs of insects
- Dendocrine glands of insects
Correct answer
A. excretory organs of insects
Step-by-step solution
Malpighian tubules are the excretory organs of insects. It opens at the junction of midgut and hindgut (ileum) in cockroach. Malpighian tubules absorb excretory substances from haemolymph and fat bodies and pass into the proctodaeum. The excretory product of insects is uric acid related with water conservation. These tubules are concerned with homeostasis, osmoregulation and excretion, Respiratory organ of insects is tracheae, which opens outside by ten pairs of spiracles, present in thoracic (2 pairs) and abdomina