Learning Outcomes 1. Describe the nature and characteristics of antigens and how they stimulate the immune system. Understand the role of the Major Histocompatibilty Complex (MHC) in antigen processing. Differentiate autoantigens from alloantigens. 2. 3.
Immune system (select the BEST CORRECT statement) When activated by an antigen, B lymphocytes undergo clonal expansion and give rise to both memory cells and plasma cells. Secreted antibody molecules are derived from B cell receptors through an alternative splicing mechanism that removes the receptor’s transmembrane domain. Although B cell receptors are expressed on the surface of B lymphocytes, they...
1. Which types of cells can produce memory cells? Select the TWO answers that are correct. B cells O cytotoxic T cells Oneutrophils macrophages O helper T cells 2. What must happen in order for a vaccine to confer immunity? Select the TWO answers that are correct. OThe vaccine should have the specific antibodies to the pathogen in it. O...
Vaccinations require that humans have which type of immune system? innate immune system adaptive immune system all of the above 10 points QUESTION 2 Which of the following are examples of antigens? one of a group of proteins found in the blood that leads to the clumping of foreign blood cells proteins embedded in the membranes of T cells...
Match the vocabulary word with the proper definition. Definitions _____ 1. involves mainly T cells and leads to the destruction of cells that are infected with viruses _____ 2. involves mainly B cells and takes place in blood and lymph _____ 3. being able to resist a pathogen that infected the body in the past _____ 4. the deliberate exposure...
1 A. Which antigens are most important in the immune response to the influenza virus? B. Explain the difference between antigenic drift and antigenic shift in the influenza virus. C. Which is most likely to lead to a major worldwide pandemic? D. What is the role of the phenomenon of ‘original antigenic sin’ in immunity to this virus?
Background INFO There are four types of blood: A, B, AB, and O (Figure 4). Each is characterized by the glycoproteins (proteins with a sugar attached) and lipoproteins (proteins with a lipid attached) embedded in the surface of red blood cells (RBCs). In addition to type, blood can be rhesus (Rh) factor positive or negative. These proteins are inherited and...
Please answer all of the question. 1a. Match the following terms with their definition (14 points) Immunity Phagocytosis Chemotaxis Autoimmune Antigen Antibody Macrophage a. The ability of the human body to resist almost all types of organisms or toxins than tend to damage the tissue or organs b. A substance that generates an immune response c. The process by which...
Known dangerous pathogens are so important to detect and eliminate that the human immune system has receptors dedicated to recognizing them as foreign. What is the name of these receptors? Select one: A. Gut associated lymphoid tissue O B. Pathogen recognition receptors O C. Major histocompatibility complex class! OD. Pathogen associated molecular patterns E. Interferon receptors
Which of the following is true about the Alien Tort Statute (ATS)? Multiple Choice It allows workers of foreign companies to sue U.S. companies due to tort liability. It allows a foreign sovereign to be immune from suit in the United States. It is viewed by some as a way to excuse U.S. companies for human rights abuses abroad. It...