Microbiology

Microbiology

The study of microscopic organisms including unicellular (single cell), multicellular (cell colony), and acellular (lacking cells). Microbiology encompasses a number of sub-disciplines including virology, mycology, parasitology, and bacteriology.

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Microbiology

spleen

Biology; Microbiology

A secondary lymphoid organ where old erythrocytes are destroyed and blood-borne antigens are trapped and presented to lymphocytes.

apical complex

Biology; Microbiology

A set of organelles characteristic of members of the phylum Apicomplexa: polar rings, subpellicular microtubules, conoid, rhoptries, and micronemes.

lymph node

Biology; Microbiology

A small secondary lymphoid organ that contains lymphocytes, macrophages, and dendritic cells. It serves as a site for (1) filtration and removal of foreign antigens and (2) the activation and ...

ascus

Biology; Microbiology

A specialized cell, characteristic of the ascomycetes, in which two haploid nuclei fuse to produce a zygote, which immediately divides by meiosis; at maturity an ascus will contain ascospores.

lysosome

Biology; Microbiology

A spherical membranous eucaryotic organelle that contains hydrolytic enzymes and is responsible for the intracellular digestion of substances.

listeriosis

Biology; Microbiology

A sporadic disease of animals and humans, particularly those who are immunocompromised or pregnant, caused by the bacterium Listeria monocytogenes.

hemolysin

Biology; Microbiology

A substance that causes hemolysis (the lysis of red blood cells). At least some hemolysins are enzymes that destroy the phospholipids in erythrocyte plasma membranes.