Self Quiz for The Adaptive Immune System: B3. T4-Lymphocytes

Study the material in this section and then write out the answers to these questions.
Do not just click on the answers and write them out. This will not test your understanding of this tutorial.

1. Match the following in terms of activation and function of T4-lymphocytes:

_____ Epitopes of antigens are recognized by T4-lymphocytes by way of their ____________. (ans)

_____ The TCR/CD4 molecules of T4-lymphocytes recognize ________________________ on antigen-presenting cells (APCs) such as dendritic cells, macrophages, and B-lymphocytes. (ans)

a. peptides from exogenous antigens bound to MHC-II molecules
b. peptides from endogenous antigens bound to MHC-I molecules
c. MHC-I molecules
d. toll-like receptors
e. B-cell receptors
f. T-cell receptors
g. plasma cells
h. lysosomes
i. proteasomes

2. Matching

_____ Promote cell-mediated immunity against intracellular pathogens; enhance the killing ability of macrophages, promote diapedesis and chemotaxis of macrophages, and promote the production of opsonizing antibodies. (ans)

_____ Help to limit immune responses and prevent autoimmunity by suppressing T-lymphocyte activies, promote immune memory, help to sustain pregnancy, and control established inflammation. (ans)

_____ Promote a local inflammatory response to stimulate a strong neutrophil response and promote the integrity of the skin and mucous membranes. (ans)

_____ Promote the production of the antibody isotype IgE in response to helminthsand allergens, attract and activate eosinophils and mast cells, promote the production of antibodies that neutralize microbesand toxins, and promote the removal of microbes in mucosal tissues. (ans)

A. CD4 T_H2 cells
B. CD4 T_H1 cells
C. CD4 T_reg cells
D. CD4 T_H17 cells
E. CD4 T_FH cells

3. Multiple Choice (ans)

• RETURN TO "THE ADAPTIVE IMMUNE SYSTEM: B3. T4-LYMPHOCYTES"

• RETURN TO UNIT 6 TABLE OF CONTENTS

Gary E. Kaiser, Ph.D.
Professor of Microbiology
The Community College of Baltimore County, Catonsville Campus
This work is licensed under a Creative Commons Attribution 4.0 International License.
Based on a work The Grapes of Staph at https://cwoer.ccbcmd.edu/science/microbiology/index_gos.html.