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.
Search the Blog
Free Consultation
Interested in our Online MCAT Course, One-on-One MCAT Tutoring or Med admissions packages? Set up a free consultation with one of our experienced Senior Student Advisors.
Schedule NowPopular Posts
-
MCAT Blog What's on the MCAT?
-
MCAT Blog How to Review MCAT Full Lengths

Free MCAT Practice Account
Need great MCAT practice?Get the most representative MCAT practice possible when you sign up for our free MCAT Account, which includes a half-length diagnostic exam and one of our full-length MCAT practice exams.
Learn More