Renal portal system of Frog is significant in

Options

A. Supplying extra blood to kidneys
B. Drawing blood from kidneys
C. Quick short circuit for elimination of nitrogenous wastes
D. Quick short circuit for elimination of fats

Answer

### Step-by-Step Solution:

1. **Understanding the Renal Portal System**: The renal portal system in frogs is a specialized blood vessel system that transports blood from the hind limbs to the kidneys.

2. **Function of the Renal Portal System**: This system is significant because it carries blood that is rich in metabolic waste products, specifically nitrogenous waste, which is generated during the metabolism of food.

3. **Role of the Kidneys**: The kidneys are responsible for filtering this blood and eliminating the nitrogenous waste. This process is crucial for maintaining the body's internal environment and preventing the accumulation of harmful substances.

4. **Evaluating the Options**:
- **Option A**: Supplying extra blood to kidneys - Incorrect, as the kidneys do not require extra blood; they need blood for filtration.
- **Option B**: Drawing blood from kidneys - Incorrect, as the renal portal system does not draw blood from the kidneys.
- **Option C**: Quick short circuit for elimination of nitrogenous waste - Correct, as the renal portal system efficiently transports waste-rich blood to the kidneys for excretion.
- **Option D**: Quick short circuit for elimination of fats - Incorrect, as the blood carried by the renal portal system is not primarily concerned with fat elimination.

5. **Conclusion**: The renal portal system of the frog is significant for providing a quick route for the elimination of nitrogenous waste through the kidneys.

### Final Answer:
The renal portal system of the frog is significant in **quick short circuit for elimination of nitrogenous waste**.

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