MALT constitutes about percent for the lymphoid tissue in human body.

Options

A. 0.5
B. 0.2
C. 0.7
D. 0.1

Answer

To answer the question regarding the percentage of lymphoid tissue in the human body that is constituted by MALT (Mucosa-Associated Lymphoid Tissue), we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Lymphoid Tissue**:
- Lymphoid tissue is a crucial part of the immune system, involved in the production and maturation of lymphocytes (T cells and B cells).

2. **Identify Types of Lymphoid Organs**:
- There are two main types of lymphoid organs: primary and secondary.
- Primary lymphoid organs include the bone marrow and thymus, where lymphocytes mature.
- Secondary lymphoid organs include the spleen, lymph nodes, and MALT.

3. **Define MALT**:
- MALT stands for Mucosa-Associated Lymphoid Tissue. It is found in the mucosal linings of various tracts in the body, including the respiratory, urinary, and digestive tracts.

4. **Determine the Percentage of MALT**:
- According to the information provided, MALT constitutes about 50% of the total lymphoid tissue in the human body.

5. **Final Answer**:
- Therefore, the answer to the question is that MALT constitutes **50%** of the lymphoid tissue in the human body.