Regarding the functions of T lymphocytes:
T lymphocytes mature in the thyroid gland
All T cells secrete cytotoxic materials
T cells respond to proteins on the surface of host cells
T cells secrete IgG when they are activated.
World Health Day is celebrated on
April 2
April 7
May 1
June 5
An 18-year girl pustular acne having these lesions over the past several years, which resolved spontaneously. However, the lesions have increased in quantity recently. The dermatologist prescribes an oral antibiotic for the treatment of these lesions. The drug most likely acts by which of the following mechanisms?
Blocks ribosomal initiation complex formation
Causes misreading at translation initiation
Interferes with translocation during translation
Prevents binding of aminoacyl- tRNA to ribosomes
Infectious proteins are present in
Satellite viruses
Gemini viruses
Prions
Viroids
Which of the following would be considered a normal white blood cell count?
Over 25,000 WBC/cc
Less than 2,000 WBC /cc
5,000 to 9,000 WBC/cc
10,000 to 25,000 WBC/cc
Which of the following white blood cells are generally considered responsible for the immune function?
Neutrophils
Eosinophils
Lymphocytes
Macrophage
Edward Jenner's method of protecting against smallpox was called
Variolation
Vaccination
Immuno diffusion
Hemagglutination
Active immunity may be produced by:
Contracting a disease
Receiving a vaccine
Receiving gamma globulin injection
Both A and B
Mast cell secretion during an immediate hypersensitivity reaction is stimulated when antigens combine with antibodies.
IgG
IgE
IgM
IgA
Regarding the inflammatory response:
Tissue swelling is the first stage of the inflammatory response
Mast cells secrete chemotactic agents that attract lymphocytes
Macrophages secrete vasoactive materials during the inflammatory response
The inflammatory response can be triggered by antibody binding to the surface of micro-organisms.
