Biology : PU-CET (U.G) 2017 Panjab University Entrance Exam With Answers

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12.

The Cells That Actually Release Antibodies Are :

A: Helper T-Cells

B: Cytotoxic T-Cells

C: Plasma Cells

D: Memory Cells

The answer is: C

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Explanation

The cells that actually release antibodies are plasma cells.

Plasma cells are a type of B cell that has been activated by an antigen and differentiated into a cell that produces and secretes large amounts of antibodies specific to that antigen. Helper T-cells help activate and coordinate the immune response, cytotoxic T-cells kill infected cells, and memory cells are long-lived cells that "remember" previous encounters with an antigen and can mount a faster and stronger response upon re-exposure to that antigen.