BIOS 255 - Chapter 22 (Week 5) Questions and Answers 100% Pass

BIOS 255 - Chapter 22 (Week 5) Questions and Answers 100% Pass What are the different types of antibodies? - ANSWER -- IgG - IgA - IgM - IgE - IgD IgG - ANSWER -- most abundant - increases the most during a second infection by pathogen that host has immunity to IgA - ANSWER -- mucosal immunity IgM - ANSWER -- first antibody produced in response to an antigen - produced as pentamers - activates complement IgE - ANSWER -- Involved with allergic reactions and parasitic infections IgD - ANSWER -- activates B cells Describe primary responses to an antigen exposure. - ANSWER -- cells learn to recognize antigen - elevated IgM Describe secondary responses to an antigen exposure. - ANSWER -- elevated IgG only 2 | P a g e Created by Grace Amelia © 2025, All Rights Reserved. What are the different types of T cells? - ANSWER -Helper T cells Cytotoxic T cells Regulatory T cells What do helper T cells do? - ANSWER -- activate B lymphocytes cytotoxic T cells or "killer T cells" - ANSWER -these cells attack and kill antigen labeled foreign or host cells Regulatory T cells - ANSWER -control the T-cell response