Return to Blog Homepage

MCAT Biology Question — Antibodies

  • by John
  • Jul 07, 2017
  • MCAT 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.

Want more MCAT practice?

We’ve got options for every schedule and learning style!

From the best online MCAT course created by top instructors with 524+ MCAT scores to the most representative full-length practice exams and private tutoring, we can custom tailor your MCAT prep to your goals!

Not sure which option is right for you? Schedule a free MCAT consultation with an MCAT expert using the form below. No obligation, just expert advice.

Submit a Comment