Microbio Chapter 15

25 July 2022
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question
Which process involves antibodies cross-linking cells or particles into large aggregates?
answer
Agglutination
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Acquired specific immunity involves the response of__________________.
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Correct B and T lymphocytes.
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Helper T cells_____________________.
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Correct activate B cells and other T cells.
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All nucleated cells contain______________________.
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Correct class I MHC.
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Which process involves antibodies coating microorganisms in order to facilitate phagocytosis?
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Opsonization
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The antibody-secreting progeny cells of a B-cell clone are called______________.
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Correct plasma cells.
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The molecular fragment on an antigen molecule that a lymphocyte recognizes and responds to is called a(n)___________________.
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epitope
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Killed or inactivated vaccines are prepared by_________________________.
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Correct treatment with formalin, heat, or radiation.
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The histocompatibility complex proteins function in_______________________.
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Correct recognition of self.
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The most abundant class of antibodies in serum is __________.
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IgG
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The most significant cells in graft rejection are______________________.
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Correct cytotoxic T cells.
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Destruction of lymphocytes with self-specificity is called _______________.
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Correct clonal deletion.
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Which of the following is a special binding substance that enhances immunogenicity and prolongs antigen retention at the injection site?
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Adjuvant
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A foreign molecule that causes a specific immune response is a(n) ___________.
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antigen
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Antigen presenting cells___________________.
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include dendritic cells. include macrophages. engulf and modify antigen to be more immunogenic. hold and present processed antigen on their cell membrane surface. Correct All of the choices are correct.
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Acellular vaccines and subunit vaccines_______________________.
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Correct contain select antigenic components of a pathogen rather than whole cells or viruses.
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Live, attenuated vaccines______________________.
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include the Sabin polio vaccine. include the measles, mumps, rubella vaccine (MMR). contain viable microbes that can multiply in the person. require smaller doses and fewer boosters compared to inactivated vaccines. Correct All of the choices are correct.
question
Which process involves antibodies covering surface receptors on a virus or toxin molecule, thereby disrupting their activity?
answer
Neutralization