Multiple Choice
Why are functions of T-lymphocytes referred to as "cell-mediated" immunity?
A) Because T-lymphocytes are cells and not just plasma proteins
B) Because T-lymphocytes work against antigens associated with cells
C) Because T-lymphocytes work only against single-celled infectious agents
D) Because T-lymphocytes must activate other classes of cells in order to have any effect
Correct Answer:

Verified
Correct Answer:
Verified
Q26: Small fragments of infectious proteins that cause
Q27: B-lymphocytes cannot bind directly with an antigen,
Q27: Helper T-lymphocytes primarily contain the CD8 coreceptor.
Q28: The display of an antigen on the
Q29: The secondary response of the immune system
Q30: Antibody concentration is termed antibody _.
Q32: Nonspecific immunity is another name for<br>A) adaptive
Q33: The cell-mediated branch of the immune system
Q34: MHC class I molecules on a cell
Q35: A secondary response to an infectious agent