Immunoglobulin’s are produced by

Options

A. Lymphocytes
B. Spleen
C. Leucocytes
D. Monocytes

Explanation

**Step-by-Step Solution:**

1. **Understanding Immunoglobulins**: Immunoglobulins are also known as antibodies. They play a crucial role in the immune response by identifying and neutralizing pathogens like bacteria and viruses.

2. **Identifying the Cells Involved**: Antibodies are produced by specific types of white blood cells known as lymphocytes.

3. **Types of Lymphocytes**: There are two main types of lymphocytes: B lymphocytes (B cells) and T lymphocytes (T cells).

4. **Role of B Lymphocytes**: B lymphocytes are specifically responsible for the production of antibodies. When B cells encounter an antigen (a substance that triggers an immune response), they differentiate into plasma cells that produce antibodies.

5. **Role of T Lymphocytes**: T lymphocytes do not produce antibodies themselves. Instead, they play a supportive role in the immune response, helping to activate B cells and enhance the antibody production process.

6. **Location of Lymphocyte Formation**: Lymphocytes are formed in lymphoid organs. The primary lymphoid organs where they mature include the bone marrow (where B cells mature) and the thymus (where T cells mature).

7. **Conclusion**: Therefore, the correct answer to the question "Immunoglobulins are produced by" is that they are produced by lymphocytes, specifically B lymphocytes.

**Final Answer**: Immunoglobulins (antibodies) are produced by lymphocytes, particularly B lymphocytes.

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