The correct option is D ) 4 .
The part of the antigen in direct contact with the antibody is called the antigenic determinant, or epitope
portion of the antibody that makes it specific for the antigen is 14) Which number on...
QUESTION 1 What is a heterophile antigen? a. an antigen homospecific to only one antibody. b. an antigen that has been modified to bind to more than one antibody. c. an antigen found only on one etiological agent. d. an antigen common to more than one species and whose distribution is unrelated to its phylogenetic distribution. 1 points QUESTION 2 What is an antigen? a protein synthesized and secreted by T lymphocytes (T cells). All bacterial cells are antigens....
1. Define antibody and antigen. 2. Explain why immunoassays are consider to be vary specific tests.
The domain of an antibody molecule that is responsible for binding to the antigen is: a. Fab b. Fc c. the carbohydrate region d. antibody light chain e. Ig domain
72) Antigen presentation by a Dendritic cell or macrophage causes A) fever B) clonal selection C) a drop in antibody production D) a dangerous drop in blood pressure E) The end of The World A= True B=False 74) Following a second exposure the antibody titre is 1000X higher than the first exposure 75) The response seen is due to toll-like receptors and not memory cells 76) "B" antibodies will be found at high titre following a second exposure to B...
For questions 51 - 55 use the descriptions from the list below to label the diagnostic test diagram: Indirect ELISA 55. 53. 54.4 - A51: - A52: -A53: - 54: - A55: A. added enzyme substrate is converted to a product which can be measured via spectrophotometry B. pathogen antigen is attached to well in plate C. enzyme-labeled anti-antibodies are added and bind to bound antibodies D. patient serum is added; if present, complementary antibody binds to antigen E. after...
Adaptive Immunity questions 1. In which scanario is the Fragment Crystallizable (Fc) potion not needed? a. Oposonization b. Adaptive Dependent Cell cytotoxicity c. Neutralization d. Antibody activation of C1q 2. Which antibody istotope binds with the highest avidity? a. IgM b. IgE c. IgA d. IgG e. IgD 3. Which part of the antibody enables binding to repeated epitopes of variable distance? a. constant region b. light chain c. heavy chain d. hinge e. none of the above 4. Antibodies:...
ELISA 1. This ELISA method coats a 96 well plate with the antigen opium. If the patient's serum contains antibodies for opium, their primary antibody will bind to the antigen. Then a secondary conjugated antibody is used to bind to the primary antibody. What specific testing method, utilizes two types of antibodies? 2. Which ELISA method coats a 96 well plate with the antibodies that target THC? If the patient's serum contains the antigen THC, then they will test positive...
1. Opsonization involves: Select one: a. The binding of an antibody to an epitope on a pathogen b. Rearrangement V and J regions of the light chain locus c. Recombination of different V, D, and J regions of the heavy chain locus d. Expression of MHC Class I proteins on all nucleated cells for recognition of self e. Subtle mutation of the heavy and light chain genes to optimize antibody structure 2. Which of these produces and secretes antibodies in...
17. Which of the following is responsible for passive immunity? a. Antibody b. Helper T cells C. Vaccines containing Antigen d. Antigen Presenting Cells e. All of the above
2s Antigen-Antibody interactons ooour in which of the foliowing ways? A Opsonization BNecation A D. Complement Fixation EAl the above are cormect 26 Antigen binding sites of an anibody are locaed in the A. Light chains alone D. Fab regions of the antbody B Heavy chains sioneCF ion of the antbody E. Soft chains alone 27 Nonspecific chemical defenses include D stomach hydrochlorie acid A. lysozyme E. All of the choices are corredt Blacic acid and electrolytes of sweat Cskins...