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PCAT Biological Processes – Antibodies

  • by Sam
  • Jan 23, 2018
  • PCAT Question of the Day

Antibodies are secreted by:

A) megakaryocytes

B) natural killer cells

C) plasma cells

D) hepatocytes

Click for Explanation

Antibodies are secreted by B-cells, and activated B-cells secreting antibodies are called plasma cells.

A) megakaryocytes, incorrect, Megakaryocytes are the source of platelets.

B) natural killer cells, incorrect, Natural Killer cells are cytotoxic lymphocytes that can recognize stressed cells in absence of antibody or MHC presentation.

C) plasma cells, correct.

D) hepatocytes, incorrect, Hepatocytes are liver cells and do not secrete antibody.

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