Interstitial fluid which is colourless does not contain

Options

A. lymphocytes
B. hormones
C. fats
D. haemoglobin

Answer

**Step-by-Step Solution:**

1. **Understanding Interstitial Fluid**: Interstitial fluid is the fluid that fills the spaces between cells in tissues. It is colorless and plays a crucial role in the transport of nutrients, waste, and other substances between blood and cells.

2. **Analyzing the Options**:
- **Option 1: Lymphocytes**: These are a type of white blood cell involved in the immune response. They are present in interstitial fluid as part of the immune system. Therefore, this option is incorrect.
- **Option 2: Hormones**: Hormones are chemical messengers released by endocrine glands and can be found in interstitial fluid. Thus, this option is also incorrect.
- **Option 3: Fats**: Dietary fats can be transported through the lymphatic system and can also be found in interstitial fluid. Hence, this option is incorrect as well.
- **Option 4: Hemoglobin**: Hemoglobin is the red pigment found in red blood cells, responsible for oxygen transport. It is not present in interstitial fluid, making this option correct.

3. **Conclusion**: The interstitial fluid does not contain hemoglobin, which is the correct answer to the question.

**Final Answer**: Interstitial fluid does not contain **Hemoglobin** (Option 4).

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