All forms of immunity depend on an exposure to antigens and a subsequent response by _____ cells. a. basophil b. neutrophil c. NK d. T

All forms of immunity depend on an exposure to antigens and a
subsequent response by _____ cells.
a. basophil
b. neutrophil
c. NK
d. T
by

1 Answer

Answer :

d. T
by

Related questions

The figure shows a human blood cell. Identify it and give its characteristics. Blood cell Characteristics (a) Basophil Secretes serotonin, inflammatory response (b) B-lymphocyte Forms about 20% of blood cells involved in immune response (c) Neutrophil Most abundant blood cells, phagocytic (d) Monocyte Lifespan of 3 days, produces antibodies

Description : The figure shows a human blood cell. Identify it and give its characteristics. Blood cell Characteristics (a) Basophil Secretes serotonin, inflammatory response (b) B-lymphocyte Forms about 20% of ... Most abundant blood cells, phagocytic (d) Monocyte Lifespan of 3 days, produces antibodies

Last Answer : (a) Basophil Secretes serotonin, inflammatory response

What type of immune defensive cell is found in the sublayers of the epidermis? a. Keratinocyte b. Dendritic (Langerhans) cell c. Neutrophil d. Basophil

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Last Answer : b. Dendritic (Langerhans) cell

The early response in asthma is due to activity. a. Cytotoxic T Cell b. Basophil c. TH2 Cell And NI( Cell d. Dendritic Cells

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_____ cells have antibodies on their surface that perform receptor functions by binding to antigen (epitope).a. T b. B c. NK d. A-C are correct

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Last Answer : b. B

Passive artificial immunity occurs in the body when a/an _____ is injected into the body or when a developing fetus receives antibodies across the placenta. a. antibody-rich serum b. antigens c. haptens d. adjuvant

Description : Passive artificial immunity occurs in the body when a/an _____ is injected into the body or when a developing fetus receives antibodies across the placenta. a. antibody-rich serum b. antigens c. haptens d. adjuvant

Last Answer : a. antibody-rich serum

A _____ is a protein receptor on the surface of macrophages, dendritic cells, and endothelial cells that allow them to recognize foreign cell markers. a. Toll-like receptor (TLR) b. pathogen-associated c. Membrane attack complex (MAC) d. Natural killer cells (NK)

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Which of the following is NOT a lymphocyte? a. B-cells b. T-cell c. NK cells d. Basophils

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Last Answer : d. Basophils

Acquired immunity consists of humoral immunity maintained by _____ and _____, and cell-mediated immunity controlled by _____ a. T cells, complement, B cells b. T cells, Interleukin, B cells c. B cells, antibodies, T cells d. B cells, histamine, T cells

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Acquired immunity usually involves protein receptors on B and T cells that recognize discrete regions of the antigen called _____. a. haptens b. epitopes c. antibodies d. protein receptors

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Which of the following is agranulocyte? (a) Basophil (b) Neutrophil (c) Lymphocyte (d) Eosinophil

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Which of the following terms refers to a form of white blood cell involved in immune response? a) Lymphocyte Both B and T lymphocytes respond to exposure to antigens. b) Granulocyte Granulocytes include basophils, neutrophils, and eosinophils. c) Spherocyte A spherocyte is a red blood cell without central pallor, seen with hemolysis. d) Thrombocyte A thombocyte is a platelet.

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Hyperimmune serum is serum with a higher than normal level of _____. a. antigens b. antibodies c. toxins d. immune cells

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Last Answer : b. antibodies

Antigens that bind directly to MHC proteins without any processing are known as _____. a. epitopes b. haptens c. superantigens d. naïve cells

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T cell receptors (or TCR) on CD4+ T cells A.recognize peptides not associated with MHC molecules B.recognize peptides associated with MHC class I molecules C.recognize peptides associated with MHC class II molecules D.are secreted out into the environment to bind antigens

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Last Answer : C.recognize peptides associated with MHC class II molecules

Which of the following is correct?A- All T Cells are CD4+ B- An epitope can have multiple antigens C- .T Cell receptors are generated by random assortment of gene cassettes D- .MHC Class II molecules are generated by random assortment of gene cassettes

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Last Answer : .T Cell receptors are generated by random assortment of gene cassettes

cell receptors (or TCR) on CD4+ T cells A-recognize peptides not associated with MHC molecules B- recognize peptides associated with MHC class I moleculesC- recognize peptides associated with MHC class II molecules D- are secreted out into the environment to bind antigens

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Natural killer (NK) cells kill by secreting a. Lysozymes. b. Granzymes. c. Defensins. d. Interferons.

Description : Natural killer (NK) cells kill by secreting a. Lysozymes. b. Granzymes. c. Defensins. d. Interferons.

Last Answer : b. Granzymes.

Exposure to the flu virus, contracting the flu, and recovering from the disease would be an example of a. Artificially acquired passive immunity. b. Naturally acquired active immunity. c. Artificially acquired active immunity. d. Naturally acquired passive immunity.

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Booster immunizations are used to raise the antibody level by stimulating the _____ cells to induce the secondary antibody response. a. helper T b. B c. memory d. plasma

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TH1 cells activatea. B cells. b. Killing of pathogens in macrophages. c. Cytotoxic T cells. d. Humoral immunity.

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Last Answer : d. Humoral immunity

._________ cells are associated with immunity while_____________ cells are part of___________ immunity. a. B; cell-mediated; T; innate b. T; humoral; B; cellular c. T; cell-mediated; B; humoral d. T; humoral; B; nonspecific

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The initiation of a humoral immune response involves a complex interaction of the antigen, cells and intercellular messengers. Which of the following statement(s) concerning the initiation of the humoral immune response is/are correct? a. Helper T lymphocytes stimulate B lymphocytes through secretion of cytokines such as interleukin 4 and 6 b. A number of cells can aid in presenting the antigen to the helper T cell including B lymphocytes and macrophages c. All antigens require coordinated efforts of the various cellular components of the immune system d. An antigen must be a living microorganism

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Which one of the following statements is NOT true of innate immunity? a. It is an early-warning system against pathogens. b. It is a form of immunity found only in vertebrates. c. It is a nonspecific response. d. It responds within minutes to many infections.

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The following are true : a. the HLA proteins are found within the cytoplasm of the cells b. HLA class I antigens are expressed on all cells with nuclei c. HLA class II antigens presents the virus infected cells to cytotoxic T lymphocytes d. HLA genes are found on chromosome 6 e. HLA tissue typing is carried out in all forms of transplantation to prevent rejection

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The major histocompatibility complex of antigens may be found a. On the surface of body cells. b. Only on cells sensitized during allergy reactions. c. Only on cells involved in a xenograft. d. On cells stimulated by the urushiol in poison ivy plants.

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Last Answer : a. On the surface of body cells.

During the course of a cellular hypersensitivity a. Antibodies react with antigens in tissues. b. Serotonin and histamine are released by cells. c. Immune complexes form on blood vessel surfacesd. A skin thickening called an induration may form..

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Last Answer : b. Serotonin and histamine are released by cells.

The unique sets of proteins that present antigens on the surfaces of body cells are a. MHC proteins. b. Cytokines. c. Complement proteins. d. Immunoglobulins.

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Which of the following statements is false regarding B cells? A- B cells can undergo class switching and produce a different antibody type B- B one marrow stem cells migrate to the thymus and develop into B cells C- B cells synthesize antibodies and put them on their cell surface D- B cells that recognize high concentrations of antigens (self) in the absence of other signals

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_____ implies that if enough people in a population are immunized against certain diseases, then it is very difficult for those diseases to spread. a. Herd immunity b. Passive immunity c. Active immunity d. Natural immunity

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The maternal _____ antibodies remain with the child for approximately three to six months after birth providing immunity after birth. a. IgA b. IgG c. IgM d. IgD

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_____ acquired _____ immunity usually follows an obvious illness or it may follow a subclinical illness. a. Naturally; passive b. Artificially; active c. Naturally; active d. Artificially; passive

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_____ responds to, distinguishes between and remembers specific pathogens it has encountered. a. Acquired immunity b. Innate immunity c. Humoral immunity d. Cell-mediated immunity

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Predominant cell types in typical chronic inflammation are all of the following EXCEPT: A A. Polymorphonuclear leukocytes B. Macrophages C. T helper lymphocytes D. NK cells

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Passive immunity can be produced by administration of (A) Pure antigens (B) Immunoglobulins (C) Toxoids (D) Killed bacteria or viruses

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The cytotoxic T cells have a_____ co-receptor while the helper T cells have a _____ co-receptor. a. CD8. CD4 b. CD4, CD8 c. MHCI, MHCII d. MHCII, MHCI

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_____ T cells prevent autoreactive T cells from attacking self. a. Memory b. Helper c. Regulatory d. Effector

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In the body's immune system, _____ are the major producers of secreted antibodies. a. macrophages b. plasma cells c. T cells d. B cells

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Mononucleosis is an infection of________ cells by the _____. a. T; cytomegalovirus b. B; Epstein-Barr virus c. Lung; cytomegalovirus d. red blood; Epstein.Barr virus

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A hybridoma cell a. Secretes monoclonal antibodies. b. Presents antigens on its surface. c. Secretes polyclonal antibodies. d. Is an antigen-presenting cell

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The serological reaction where antigens and antibodies form an extensive Lattice of large particles is called a. Fixation. b. Precipitation. c. Neutralization. d. Agglutination.

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An attenuated vaccine contains a. Inactive toxins. b. Living, but slow growing (replicating) antigens. c. Killed bacteria. d. Noninfective antigen subunits.

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Which one of the following is not an antigen? a. A toxin b. A virus c. A bacterial cell d. All (A-C) are antigens

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In which of the following case a large lattice is formed? A.Antibody is in excess B.Antigens and antibodies are in optimal proportion C.Antigen is in excess D.None of these

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In which of the following case a large lattice is formed? A.Antibody is in excess B.Antigens and antibodies are in optimal proportion C.Antigen is in excess D.None of these

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Which of the following is correct for isoantigens? A- They are antigens found in all members of different species B- They are antigens found in some members of a species C- They are antigens found in all members of a species D- They are antigens found in some members of different species

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Which one of the following cells produces antibodies? (1) Eosinophil (2) Monocyte (3) Basophil (4) Lymphocytes

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Which one of the following cells produces antibodies ? (1) Eosinophil (2) Monocyte (3) Basophil (4) Lymphocytes

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The _____ class of antibodies is the principal component of a secondary antibody response. a. IgM b. IgD c. IgG d. IgE

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