Match Each Term with the Most Appropriate Statement

question 18

Multiple Choice

Match each term with the most appropriate statement.
-helper T cell

• A)cells originating from antigen-presenting dendritic cells, activates other lymphocytes in an adaptive immune response
• B)cells that directly destroy body cells already infected by viral or fungal parasites, as well as mutant and cancerous cells
• C)lymphocytes that are held in reserve, circulate in the bloodstream, and enable a rapid response to subsequent encounters with the same invader
• D)coats invading cells to facilitate its phagocytosis; also punctures their cell membrane
• E)antibody-manufacturing cells that are produced and mature in the bone marrow
• F)able to destroy cells but not dependent on recognition of antigen-MHC complexes
• G)a class of proteins that help cells of the immune system communicate
• H)"big eaters" that alert other lymphocytes to the invasion of specific antigens
• I)lymphocyte that has never bound to an antigen
• J)a group of cells that are all produced asexually from one original parent cell
• K)surface patterns of nonself molecules or particles
• L)proteins released by cytotoxic T cells to destroy target cell membranes
• M)preparation injected into the body to elicit a secondary immune response
• N)the AIDs virus represses the expression of these

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Definitions:

MgBr

Magnesium bromide, a chemical compound used as a reagent in organic synthesis, particularly in Grignard reactions.

7-Methyl-2-octanone

A ketone where the ketone group is positioned at the second carbon of an octane chain that has a methyl group attached to its seventh carbon.

Reagents

Agents or compounds inserted into a system with the purpose of starting a chemical reaction or assessing whether a reaction takes place.

Heptanoic Acid

A saturated fatty acid with the chemical formula C7H14O2, known for its odorous characteristic and usage in the synthesis of esters for fragrances.