Select the correct route for the passage of sperms in male frogs:
Answer: (D) Testes → Vasa efferentia → Kidney → Bidder's canal → Urinogenital duct → Cloaca. Answer: (D) Testes → Vasa efferentia → Kidney → Bidder's canal → Urinogenital duct → Cloaca.
- A.Testes → Bidder's canal → Kidney → Vasa efferentia → Urinogenital duct → Cloaca
- B.Testes → Vasa efferentia → Kidney → Seminal Vesicle → Urinogenital duct → Cloaca
- C.Testes → Vasa efferentia → Bidder's canal → Ureter → Cloaca
- D.Testes → Vasa efferentia → Kidney → Bidder's canal → Urinogenital duct → Cloaca✓
Correct Answer
(D) Testes → Vasa efferentia → Kidney → Bidder's canal → Urinogenital duct → Cloaca
Solution & Explanation
Answer: (D) Testes → Vasa efferentia → Kidney → Bidder's canal → Urinogenital duct → Cloaca. Vasa efferentia (10-12) arise from the testes, enter the kidneys and open into Bidder's canal, which then communicates with the urinogenital duct that comes out of the kidneys and opens into the cloaca. NCERT (Class XI, Ch 7 Structural Organisation in Animals): p.83-84, lines 51-4 — "Vasa efferentia are 10-12 in number that arise from testes. They enter the kidneys on their side and open into Bidder’s canal. Finally it communicates with the urinogenital duct that comes out of the kidneys and opens into the cloaca."