Study guides, Class notes & Summaries

Immunology Final Exam A vaccine is attempting to stimulate the adaptive immune system to create memory. (slide 1:2) a. true b. false - a. true A vaccine is attempting to stimulate the adaptive immune system to create a better innate response. (slide 1:2) a. true b. false - b. false *A vaccine is attempting to stimulate the adaptive immune system to create MEMORY. However, we are just beginning to appreciate the role of the innate immune system in this process. In order to ...

1. Successful testing of the pre-TCR induces all of the following, except: a. Allelic exclusion b. Rearrangement of alpha, gamma, and delta c. Expression of Ig-alpha and Ig-beta d. Expression of CD4 and CD8 2. During negative selection, a B cell receives a signal indicating that its receptor binds to self with strong affinity. What options does the B cell have at this point? a. Try again at rearrangement of the heavy chain b. Move to the cortex for positive selection c. Seek positive se...

the tough water insoluble protein present in the outer layer of the epidermis is carotene? - correct answer false- keratin skin i sa non specific defense mechanism? - correct answer true inflammation is a major feature of the acquired defence system? - correct answer false- innate interferons prevent viral replication? - correct answer true eosinophils can smash helmint...

What is the immune system? - correct answer A series of cells, tissues, organs, and organ systems that are involved in the body's defense m ____ immunity includes maternal antibodies from colostrum and physicochemical barriers such as the skin and mucous membranes - correct answer passive _______ immunity is developed or acquired and is classified as humoral or cell-mediated immunity - correct answer ac...

Innate Immunity - correct answer a type of immunity also known as natural or native immunity; it provides the early line of defense against microbes, consisting of physical and chemical barriers, phagocytic cells, natural killer cells, blood proteins/complement system, and cytokines; it is not antigen specific and responds to a broad class of related structures (germline encoded receptors) Cytokines - correct answer proteins in the blo...

Antigen - correct answer any molecule that can bind to immune system componnts (antibodies, B cell receptors, or T cell receptors) epitope - correct answer three domensional region of an antigen that is recognized by the immune system (i.e. antibody) -different receptors will recognize each one immunity - correct answer the state of protection from infectious disease types of immune systems - correct...

IMMUNITY What is immunity? -Latin immunis: root means exempt -_______ against foreign pathogens or substances -Second part is ______ such as immune diseases What is the purpose of the immune system? 1. Differentiate b/w self & non-self 2. Respond appropriately - correct answer State of protection resistance to disease FOUR MAIN TYPES OF PATHOGENS Bacteria: single-celled prokaryotes ________, open wounds, inhalation, ingestion Viruses: non-...

Immunogens and Antigens - correct answer Immunogen: A molecule that can elicit the production of an antibody when introduced into the host. Antigen: A molecule that is recognized and bound by an antibody. An immunogen must be an antigen, but an antigen is not necessarily an immunogen. Innate vs. Adaptive Immune System - correct answer 1) Adaptive takes time to react to pathogen; innate are always present and ready to be mobilized. ...

Immune Response - correct answer can be divided into two major classifications: humoral and cell-mediated Antigen (Ag) - correct answer A molecule which elicits a specific immune response when introduced into an animal. Antigenic (immunogenic) substances - correct answer Generally large molecules (>10,000 daltons in molecular weight), Structurally complex (proteins are usually very antigenic), Accessible ...

which of the following statements is true of the data displayed? - correct answer vaccine coverage improvement was inconsistent across the planet what lymphatic component serves to monitor the bacterial load in the intestines specifically? - correct answer peyer's patches payer's patches Fun Fact: - correct answer Peyer's patches are surrounded by specialized 'microfold' cells that serve to feed macrop...