Brown adipose tissue is also known as

Options

A. Unilocular adipose tissue
B. Multilocular adipose tissue
C. Both (1) and (2)
D. Yellow bone marrow

Answer

**Step-by-Step Solution:**

1. **Understanding Brown Adipose Tissue (BAT):**
- Brown adipose tissue is a specialized type of fat tissue found in mammals, primarily involved in thermogenesis (heat production).

2. **Characteristics of Brown Adipose Tissue:**
- BAT contains many small fat droplets within each cell. This structure is significant because it allows for efficient energy metabolism.
- The presence of multiple fat droplets leads to the term "multilocular," meaning "many chambers."

3. **Comparison with White Adipose Tissue:**
- In contrast to brown adipose tissue, white adipose tissue (WAT) has a single large fat droplet per cell, hence the term "unilocular."
- BAT cannot be used as a food substitute, while WAT can serve as an energy reserve.

4. **Color and Composition:**
- The dark color of brown adipose tissue, which can range from dark brown to light brown, is due to a high concentration of iron-containing cytochrome pigments.
- These pigments are particularly abundant in newborns and hibernating animals, contributing to the tissue's unique properties.

5. **Identifying the Correct Term:**
- Given the characteristics of brown adipose tissue, it is correctly referred to as "multilocular adipose tissue."
- The other options provided (unilocular adipose tissue, both 1 and 2 are incorrect, yellow bone marrow) do not accurately describe brown adipose tissue.

6. **Conclusion:**
- Therefore, the correct answer to the question "Brown adipose tissue is also known as" is "multilocular adipose tissue."

**Final Answer:**
Brown adipose tissue is also known as multilocular adipose tissue.

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