The colour in the brown fat is due to

Options

A. its larger capacity for generating heat
B. large number of mitochondria present
C. a high concentration of iron containing cytochrome pigments
D. presence of chromatophores

Answer

To solve the question regarding the color of brown fat, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Brown Fat**:
- Brown fat is a type of adipose tissue found in mammals. It is known for its ability to generate heat through a process called non-shivering thermogenesis.

2. **Identifying Characteristics of Brown Fat**:
- Brown fat has a high capacity for consuming oxygen and producing heat. This is primarily due to its metabolic activity.

3. **Role of Mitochondria**:
- Brown fat contains a large number of mitochondria, which are the cellular organelles responsible for energy production. The presence of many mitochondria is essential for the heat-generating function of brown fat.

4. **Color of Brown Fat**:
- The brown color of brown fat is attributed to the presence of iron-containing cytochrome pigments. These pigments are involved in the electron transport chain within the mitochondria and give brown fat its characteristic color.

5. **Evaluating the Options**:
- **Option A**: "Its larger capacity for generating heat" - While this is true, it does not explain the color.
- **Option B**: "Large number of mitochondria present" - This is also true but does not directly explain the color.
- **Option C**: "A high concentration of iron-containing cytochrome pigments" - This is the correct answer as it directly relates to the color of brown fat.
- **Option D**: "Presence of chromatophores" - This is incorrect as chromatophores are not related to brown fat.

6. **Conclusion**:
- The correct answer is **Option C: A high concentration of iron-containing cytochrome pigments**.