The amount of urea which is excreted out in the urine per day of an adult human is

Options

A. 25 to 30 grams
B. 1 to 1.5 grams
C. 18 grams
D. 100 grams

Answer

To solve the question regarding the amount of urea excreted in the urine per day of an adult human, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Urea Excretion**:
- Urea is a waste product formed from protein metabolism in the liver. It is a major component of urine.

2. **Daily Urea Excretion Amount**:
- The typical amount of urea excreted by an adult human in a day is approximately 25 to 30 grams.

3. **Identifying the Correct Option**:
- Based on the information that 25 to 30 grams of urea is excreted daily, we can conclude that the correct answer to the question is the option that states this range.

4. **Additional Information**:
- The total volume of urine produced by an adult human daily is about 1 to 1.5 liters, which can vary based on factors like diet, temperature, and the use of diuretics.

### Final Answer:
- The amount of urea excreted in the urine per day of an adult human is **25 to 30 grams**.

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