What are plasma cells?...

What are plasma cells?

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**Step-by-Step Solution:** 1. **Definition of Plasma Cells**: Plasma cells are a type of white blood cell that plays a crucial role in the immune response. They are derived from B-lymphocytes (B-cells) and are responsible for producing antibodies. 2. **Role of Antigens**: When a foreign substance, known as an antigen, enters the body, it triggers an immune response. Antigens are typically proteins found on the surface of pathogens like bacteria and viruses. 3. **Activation of T-helper Cells**: The presence of an antigen activates T-helper cells, which are a subtype of lymphocytes. These T-helper cells recognize the antigen and signal B-cells to respond. ...

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Plasma cells are

the same as memory cells

formed from blood plasma

B-cells that are actively secreting antibody

inactive T-cells carried in the plasma

(A) : Hybridoma is a cell formed by the fusion of a cancer cell with a plasma cell. (R) : It is used to produce large amounts of a single vaccine.

If both (A) and (R) are true and (R) is the correct explanation of (A).

If both (A) and (R) are true but (R) is not the correct explanation of (A).

If (A) is true but (R) is false.

If both (A) and (R) are false.

Antibiodies are produced and secreted by plasma cells. Which of the following organelles must be well developed for effective antibody synthesis?

smooth ER

mitochondria

storage vacuole

rough ER