Immunology — Flashcards

Flashcard 31: Toll-like receptor (TLR) _____ binds to flagella

Answer: 5

Flashcard 32: Nasal secretions contain muramidase (lysozyme), immunoglobulins Ig_____ and IgE, and interferon and thus have antibacterial properties.

Answer: A

Flashcard 33: Natural killer cells may induce apoptosis of virally infected cells and tumors cells via release of _____ and granzymes

Answer: perforins

Flashcard 34: Differentiation of helper T cells to _____ is inhibited by IFN-γ (from Th1 cells)

Answer: Th2

Flashcard 35: Toll-like receptor (TLR) _____ binds to double-stranded RNA (dsRNA).

Answer: 3

Flashcard 36: Class _____ MHC encodes for tumour necrosis factor and complement proteins (C2, C4, Factor B).

Answer: III

Flashcard 37: Ig_____ exists as a dimer held by a J chain when secreted

Answer: A

Flashcard 38: Differentiation of helper T cells to _____ is inhibited by IL-4 and IL-10 (from Th2 cells)

Answer: Th1

Flashcard 39: MHC _____ binds to the T-cell receptor (TCR) and CD-8

Answer: I

Flashcard 40: The signal transduction region of B lymphocytes includes a heterodimer of _____ and Ig-beta

Answer: Ig-alpha

Extra: The Ig-alpha and Ig-beta heterodimer (also known as CD79a and CD79b) contains ITAMs (Immunoreceptor Tyrosine-based Activation Motifs) required for signal transduction when the B-cell receptor binds an antigen.