NEET 2025 · BiologyPrevious Year Question
In frog, the Renal system is a special venous connection that acts to link:
Answer: (B) Kidney and lower part of body. Answer: (B) Kidney and lower part of body.
- A.Kidney and intestine
- B.Kidney and lower part of body✓
- C.Liver and intestine
- D.Liver and Kidney
Correct Answer
(B) Kidney and lower part of body
Solution & Explanation
Answer: (B) Kidney and lower part of body. The renal portal system is the special venous connection between the kidney and the lower parts of the body in frogs (the hepatic portal system links liver and intestine). The stem's phrase 'Renal system' refers to the renal portal system. NCERT (Class XI, Ch 7 Structural Organisation in Animals): p.82, lines 33-36 — "Special venous connection between liver and intestine as well as the kidney and lower parts of the body are present in frogs. The former is called hepatic portal system and the latter is called renal portal system."
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