Microbiology Question 11.4 PointsThe B-lymphocyte

Microbiology Question 11.4 PointsThe B-lymphocyte

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Microbiology Question 11.4 PointsThe B-lymphocyte

  1. Question 11.4 PointsThe B-lymphocyte
    1. Is thymus derived.
    2. Matures in the thymus gland in all birds and mammals.
    3. When activated will divide and form specialized plasma cells which produce antibodies. 
    4. Engages in a spectrum of immune functions characterized as cell-mediated immunity.
  2. Question 21.4 PointsThe absence of hemolysis on a blood agar plate is referred to as _______ hemolysis
    1. Alpha
    2. Beta
    3. Gamma
    4. Delta
  3. Question 31.4 PointsMicrobial resistance to drugs is acquired through
    1. Conjugation
    2. Transformation
    3. Transduction
    4. All of these answers contribute
  4. Question 41.4 PointsThe field of study in which medicine and microbiology intersect is known as medical microbiology
    1. True
    2. False
  5. Question 51.4 PointsAll of the following are methods that can be used to isolate bacteria from a mixed culture EXCEPT
    1. Streak plating
    2. Loop dilution pour plating
    3. Gram staining
    4. Serial dilution followed by spread plating
  6. Question 61.4 PointsThe progeny cells of a B cell clone are called
    1. Antibodies.
    2. Activated macrophages.
    3. Sensitized T cells.
    4. Bursa cells.
    5. Plasma cells. 
  7. Question 71.4 PointsMannitol salt agar is used to select strains of staphylococci from streptococci and enterococci within the sample.
    1. True
    2. False
  8. Question 81.4 PointsBefore attempting to identify an unknown bacterial species using traditional methods, the organism must be isolated in a pure culture.
    1. True
    2. False
  9. Question 91.4 PointsNatural passive immunity involves the passing of antibodies from mother to infant and acts immediately but is short-lived.
    1. True
    2. False
  10. Question 101.4 PointsKey historical discoveries leading to the field of medical microbiology include all but which of the following:
    1. Koch’s postulates
    2. Lister’s development of aseptic technique
    3. Mendel’s principles of genetics
    4. Leeuwenhoek’s discovery of animalcules under the microscope
  11. Question 111.4 PointsAny clear zone of inhibition around an antibiotic disc being used for identification is a clear indication that the organism is sensitive to the antibiotic.
    1. True
    2. False
  12. Question 121.4 PointsA vaccine that contains a protein conjugated to a capsule polysaccharide is called
    1. Acellular
    2. Attenuated
    3. Conjugate
    4. Subunit
  13. Question 131.4 PointsFive classes of antibodies include
    1. IgG, IgA, IgM, IgD, and IgE
    2. IgA, IgB, IgD, IgE, and IgM
    3. IgB, IgC, IgD, IgE, and IgM
    4. IgG, IgB, IgM, IgD, and IgE
  14. Question 141.4 PointsThe _________ test involves using rabbit plasma as a reagent and its results are determined by observation of thickening of the medium.
    1. Catalase
    2. Oxidase
    3. Coagulase
    4. Peroxidase
  15. Question 151.4 PointsThe majority of white blood cells in circulation include
    1. Neutrophils and lymphocytes.
    2. Eosinophils and basophils.
    3. Macrophages.
    4. Erythrocytes.
  16. Question 161.4 PointsCharacteristics of an ideal antimicrobial drug include all EXCEPT
    1. Toxic to the specific microbe but nontoxic to the host
    2. Readily delivered to the site of infection
    3. Does not lead to the development of antimicrobial resistance
    4. Easy to administer but able to reach the infectious agent anywhere in the body
    5. All of the answers are correct
  17. Question 171.4 PointsInfections that are more common during pregnancy include all the following EXCEPT
    1. Malaria
    2. Urinary tract infections
    3. Candidiasis
    4. Poliomyelitis
    5. Syphilis
  18. Question 181.4 PointsHow do you determine the species of an unknown bacterium?
    1. You should make a careful investigation of the morphology of the bacterial cells using a microscope to make a firm identification.
    2. You need to quantify the number of bacteria in the same to determine the species.
    3. Identification can only be made based on the patient’s signs and symptoms.
    4. You use standard tests and pre-existing knowledge to classify the bacterium.
  19. Question 191.4 PointsType I hypersensitivities include
    1. Hay fever
    2. Hemolytic disease of newborns
    3. Celiac disease
    4. Graft rejection
  20. Question 201.4 PointsA vaccine that contains living, non-virulent strains of a microbe is called
    1. Acellular
    2. Attenuated
    3. Inactivated
    4. Toxoid
  21. Question 211.4 PointsThe composition of a person’s microbiome may have an important influence on the occurrence of autoimmune disorders.
    1. True
    2. False
  22. Question 221.4 PointsWhich test uses a medium that is both selective and differential for gram-negative lactose fermenters and non-lactose fermenters?
    1. MacConkey agar
    2. Mannitol salt agar
    3. Coagulase test
    4. Bile esculin hydrolysis
  23. Question 231.4 PointsThe least numerous of all white blood cells that release histamine during inflammation and allergic reactions are
    1. Monocytes.
    2. Basophils.
    3. Lymphocytes.
    4. Eosinophils.
    5. Neutrophils.
  24. Question 241.4 PointsMedical Microbiology includes all but which of the following
    1. Pathology
    2. Immunology
    3. Epidemiology
    4. Phycology/algology
    5. Bacteriology
  25. Question 251.4 PointsThe specificity of an antibody is due to
    1. The constant portions of the H and L chains.
    2. The L chains.
    3. The variable portions of the H and L chains.
    4. Its valence.
    5. The H chains.

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  • Assessment due date6/13/21, 11:59 PM (CDT)
  • Time limit50 minutes Automatic submission
  • Attempts1 attempt left

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