Asked in Premeth past paper pool — BiologyModerate

The reason for an increase in the number of white blood cells in people with more:

Correct answer: A. Memory cells are produced in the plasma

  • A. Memory cells are produced in the plasma
  • B. Lymphocytes are produced in the bone marrow
  • C. T-lymphocytes are required to stimulate the immune system
  • D. Antibodies are required to increase the production of B-lymphocytes

Explanation

Memory cells are specialized Lymphocytes that enable a faster response on re-exposure to same pathogen. These cells rapidly proliferate increasing WBCs.So Option A is correct.

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About Specific Defense Mechanism

Specific defense mechanisms provide targeted immunity through B lymphocytes, T lymphocytes, antibodies and memory cells that recognize particular antigens. Questions cover humoral and cell mediated responses, clonal selection, primary and secondary immune responses, vaccination and passive immunity, while distinguishing adaptive defenses from the immediate, non specific innate response.

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