Mhc ii - Study guides, Class notes & Summaries

T-cell receptors, when coexpressed with CDS mole cules, are restricted to recognizing and binding peptide fragments associated with A. CD3 molecules. B. CD4 molecules. C. MHC class I molecules. D. MHC class II molecules. E. MHC class Ill molecules. - The correct answer is C. cos+ T cells are re stricted to the recognition of pMHC I complexes. C03 molecules are associated with the TCR on the T-cell surface and are found on both mature C04+ and cos+ T cells. C04+ T cells are restricted to ...

Antigen Shape to Antibody Shape - Answer-Simple = Pocket Large = Groove Complex = Extended Surface Type of chemical bond used with antibodies - Answer-1)Electrostatic 2) Hydrogen bonds 3) Van der Waals forces 4) Hydrophobic interactions Cross reactivity - Answer-The biding site can accept a shape close enough in shape and get reaction or a stable structure Ex. Penicillin and other B-lactam Diagnostic tests for antibody/antigen - Answer-ELISA Lateral Flow test (pregnancy hCG) Immunofl...

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 produce memory killer T cells which ...

______ greatly activates the classical pathway of complement activation - IgM _______ is expressed by T cells whose function is to activate other cells. - CD4 ___________ is expressed by cytotoxic T cells - CD8 ____________ molecules present peptides from pathogens, commonly viruses, to CD8 T cells, which are specialized to kill any cell that they specifically recognize. - MHC class I _____________ increases the expression of both MHC Class I and MHC Class II molecules, and can induce the ...

ACAAI Review for the Allergy & Immunology Boards Flash Cards ALL CHAPTERS Questions and Answers 100% Solved What is the hapten-carrier effect? Small-molecule antigen requires covalent linkage to a larger carrier to stimulate adaptive immune response. The process is achieved in collaboration between hapten-specific B cells and carrier-specific T cells. This is the basis of developing conjugated vaccines. What are the common superantigens and related diseases? SEB and SEC from Staphyl...

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 ...

NBME 30| Questions and Answers, 100% Correct difference b/w Kwashiorkor & Marasmus - kwashiorkor (edematous malnutrition): marasmus PLUS EDEMA - marasmus (WASTING SYNDROME): skin lesions, fatty liver, acute proteinenergy malnutrition with decreased arm circumference, weight per length or BMI deformation disruption in organ morphogenesis occurring AFTER embryonic period; extrinsic force limits normal organ development vascular changes in chronic HTN - hyaline arteriolosclerosis: protein...

1. How are drugs sorted into therapeutic groups and classes? A. first by the conditions that they are used to treat. and then by their mechanisms of action B. first by their mechanisms of action. and then by their therapeutic effects C. first by their side effects. and then by their therapeutic effects D. first by their toxicity. and then by their effectiveness 2. Bone marrow transplants... A. require that the patient first undergo chemotherapy or radiation to kill the diseased...

Immunology- Block 1 Exam Questions With Answers Pattern Associated Molecular Patterns (PAMPs) molecules shared by groups of related microbes that are essential for the survival of those organisms Ligand any molecule or atom which binds reversibly to a protein Epitope smallest molecular structure recognized by a specific receptor Dendritic Cells, Macrophages, B Cells What are the professional APCs? Peripheral Tolerance of T Cells Auto reactive lymphocytes are kept anergi...

Immunoglobulins are secreted by which type of cell? A. B-lymphocyte B. Megakaryocyte C. T-lymphocyte D. Natural killer : A. B-lymphocyte B lymphocytes synthesize and secrete immunoglobulins. Which portion of the immunoglobulin activates the complement pathway? A. MHC Class I B. Fab C. Fc D. MHC Class II : C. Fc 2 | P a g e The Fc region activates the complement pathway. Which of the following is a class II HLA antigen? A. B B. DR C. A D. C : B. DR HLA DR, DQ and DP are c...