ANSWERS #9
Based on the information that you have learned about cell and virus structure, and
immunology and vaccination, do you think that it will be possible to create a vaccine
against the HIV virus? (3/3) - correct answer The HIV virus is categorized under a type
4 hypersensitivity which means it is cell-mediated. Based on what we know of type 4
hypersensitivities and we know of HIV and how HIV leads to to AIDS, I think it would be
unlikely that we could create a vaccination against it, but we could look into the thymus
and how it produces T cells and see if we could go about creating a solution that way as
T cells are what fight type 4 sensitivities and thys fight the HIV virus
Any process or disease that persists over a long duration - correct answer chronic
Composed of pathogens that have been weakened so that they can no longer cause
disease - correct answer attenuated vaccine
Antibodies invovled in immediate hypersensitivities - correct answer ige
The process of stimulating phagocytosis by affixing molecules to the surfaces of foreign
cells or particles - correct answer opsonization
Natural, nonspecific response to tissue injury that protects the host from further damage
- correct answer inflammation
Body temperature above 37 degrees C - correct answer fever
Specialized cells location in connective tissue that release histamine - correct answer
mast cells
White blood cells - correct answer leukocytes
The long lived progeny of a sensitized lymphocyte that remains in circulation and is
genetically programmed to react rapidly with its antigen - correct answer memory cells
Lymphocytes that matures in the thymus and acts directly against endogenous antigens
in cell-mediated immune responses - correct answer T lymphocytes
A WBC derived from a monocyte that leaves the circulation and enters tissues - correct
answer macrophage
Class of chemicals released from host cells that have potent effects on immunity -
correct answer interleukins
, Acquired resistance to an infectious agent due to prior contact with that agent - correct
answer immunity
Wbcs that have large granules that stain differently - correct answer granulocytes
Conceoptual explanation for the development of lymphocyte specificity and variety
during immune maturation - correct answer clonal selection
A diminished or lack of immune reaction to pathogens due to incomplete immune
system development, immune suppression, or destruction of the immune system -
correct answer hyposensitivity
Methods of identification that include morphological as well as physiological
characteristics - correct answer phenotypic methods
Test using antibodies conjugated with a dye that glows when subjected to UV light -
correct answer immunoflorescence
A measure of antibody level in a patient, determined by agglutination methods - correct
answer titer
The branch of immunology that deals with the in vitro testing of serum/blood plasma -
correct answer serology
Thick tough layer that acts as a physical barrier
1. Prostaglandins
2. Naturally acquired active immunity
3. The skin
4. The formed elements of the blod - correct answer 3. The skin
An antigen that stimulates a hypersensitive response
1. Allergen
2. Eosinophils
3. Immunophilins
4. Leukotrienes - correct answer 1. Allergen
Cytokine released when mast cells and basophils release their granules
1. Histamine
2. Leukotrienes
3. Interferon
4. Prostaglandins - correct answer 1. Histamine