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.Management Sciences
Category: General Microbiology
Blood agar is________________?
A. Simple media
B. Transport media
C. Enriched media
D. Differential media
compared with autoclave, use of a dry heat over for sterilization has the following disadvantages______________?
A. Time-consuming
B. Less effective
C. Causes instruments to rust
D. Causes sharp instruments to dull
The key cell types involved in the acquired immunity include all EXCEPT________________?
A. B lymphocytes
B. Erythrocytes
C. T lymphocytes
D. Antigen presenting cells (APC
All are not true for cultivation of anaerobic organisms except_______________?
A. Incubator
B. anaerobic jar
C. Refrigerator
D. Centrifuge
IgG antibodies have a half-life of approximately_______________?
A. 1 hour
B. 1 day
C. 1 week
D. 1 Month
An example of naturally acquired passive immunity is__________________?
A. Hepatitis vaccination
B. Gamma globulin injection
C. Immune blood transfusion
D. Placental transfer of antibodies
IL-1 is produced by_________________?
A. Helper T cells
B. Helper B cells
C. Monocytes
D. Macrophages
Anaphylaxis refers to the________________?
A. Severe reaction following the injection of protein solution in a sensitized individual
B. Severe reaction following primary injection of Protein solutions
C. State of immunity developed by repeated injections of any foreign substance
D. Severe reaction resulting from sensitivity to common allergens
Human immunoglobulins are divided based on_____________?
A. Functional differences
B. Structural differences
C. Complemented fixation
D. None of the above
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