In the human body , ………..of water occurs inside the cells as intracellular water , while ……….of water is present in all extracellular fluids.

Options

A. `55% and 45%`
B. `60% and 40%`
C. `45% and 55%`
D. `40% and 60%`

Answer

To solve the question, we need to determine the distribution of water in the human body, specifically how much is intracellular (inside the cells) and how much is extracellular (outside the cells).

### Step-by-Step Solution:

1. **Understand the Total Water Composition**:
- The human body is composed of approximately 60% water by weight. This is a crucial starting point for our calculations.

2. **Identify Intracellular Water**:
- Intracellular water refers to the water contained within the cells. It constitutes about two-thirds (or roughly 66.67%) of the total body water. For practical purposes, we can round this to 60% for the sake of the question.

3. **Calculate Extracellular Water**:
- The remaining water in the body is found outside the cells, known as extracellular water. This typically accounts for about one-third of the total body water. If we consider that 60% of the water is intracellular, then the remaining water, which is extracellular, would be approximately 40%.

4. **Fill in the Blanks**:
- Based on the above calculations, we can fill in the blanks in the question:
- In the human body, **60%** of water occurs inside the cells as intracellular water, while **40%** of water is present in all extracellular fluids.

5. **Select the Correct Option**:
- Therefore, the correct option is: 60% and 40%.

### Final Answer:
In the human body, **60%** of water occurs inside the cells as intracellular water, while **40%** of water is present in all extracellular fluids.

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