13- This type of cell is involved in the release of histamines and allergic reac
ID: 273130 • Letter: 1
Question
13- This type of cell is involved in the release of histamines and allergic reactions. a) Basophils b) Neutrophils c) Eosinophils d) Dendritic cells 14-The most abundant cell of the Immune system is a) Basophi b) Neutrophil c) Eosinophil d) Mast cel 15-This type of hypersensitivity involves a delayed reaction a) Type I b) Type II c) Type III d) Type IV l6- These type of T cells are involved in activating B cells and macrophages a) Helper b) Cytotoxic c) Dendritic d) None of the above 17- This type of granulocyte is involved in eliminating worms or parasites from the body a) Eosinophil b) Basophil c) Mast cell d) Neutrophil 18- True or False A T cell receptor consists of an alpha and beta chain attached to the membrane of the B ?? 19-True or False The first class of antibody made is IgM 20- The complement system leads to a) Opsonization b) Cell lysis c) Inflammation d) All of the above 21- Capsids are composed of a) DNA b) RNA c) lipids d) proteins 22- Temperate phages often a) lyse their host cell all the time b) integrate their DNA into the host DNA BIO,261 060 1182 1 practice%20ex am%202 doe sted. cuny.edu/bbes webdav/pid-346728 90-dt, cont. /courses MEC01Explanation / Answer
13) A ) Basophils
Histamine is produced by basophils. basophiles responsible for inflammatory reactions during immune response, as well as in the formation of acute and chronic allergic diseases.
14) Answer B: Neutrophile
Neutrophils are the most abundant type of granulocytes and the most abundant type of white blood cells in most mammals.
15) Answer D:
Type IV Hypersensitivity is also called as Delayed type of hypersensitivity.
16) Answer A Helper T cells
T helper cells bind to the antigen-complexed class II MHC molecule on the B cell surface resulting in T cell activation. The activated T cell then provides a second activation signal to the B cell. They not only activateB cells to secrete antibodies and also secrete macrophages to destroy ingested microbe.
17) Answer A:
Eosinophils will be activated in response to worms and parasites.
20) Answer A: Opsonization
21) Answer D: Proteins
capsid consists of several oligomeric structural subunits made of protein called protomers.
22 Answer B: integrate their DNA in to the Host DNA.
temperate refers to the ability of some bacteriophages to display a lysogenic life cycle, temperate phages can integrate their genomes into their host bacterium's chromosome.
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