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Micro W2
Question | Answer |
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Gram stain | A differential stain that classifies bacteria into two groups, gram-positive and gram-negative |
Mordant | A substance added to a staining solution to make it stain more intensely |
Counterstain | A second stain applied to a smear, provide contrast to the primary stain |
Acid-fast stain | A differential stain used to identify bacteria that are not colorized by acid-alcohol |
Capsule | An outer, viscous covering on some bacteria composed of a polysaccharide or polypeptide |
Antibody | A protein produced by the body in response to an antigen, and capable of combining specifically with that antigen |
Basic dye | A salt which the color is in the positive ion; used for bacterial stains |
ABO Blood Group System | The classification of red blood cells based on the presence or absence of A and B carbohydrate antigens |
Endospore | A resting structure formed inside some bacteria |
Flagellum | A thin appendage from the surface of a cell; used for cellular locomotion; composed of flagellin in prokaryotic cells, composed of nine pairs plus two microtubules in eukaryotic cells |
Chromosome | The structure that carries hereditary information, chromosomes contain genes |
Cell membrane | A selectively permeable membrane that encloses the cytoplasm of a cell. Synonymous with the terms cytoplasmic membrane and plasma membrane |
Cell wall | The outer covering of most bacterial, fungal, algal, and plant cells; in bacteria, it consists of peptidoglycan |
Chemotaxis | Movement in response to the presence of a chemical |
Cytoplasm | In a prokaryotic cell, everything inside the plasma membrane; in a eukaryotic cell, everything inside the plasma membrane and external to the nucleus |
Definitive host | An organism that harbors the adult, sexually mature form of a parasite |
Diplococci | Cocci that divide and remain attached in pairs |
Diplobacilli | Rods that divide and remain attached in pairs |
Endocystosis | The process by which material is moved into a eukaryotic cell |
Centrosome | Region in a eukaryotic cell consisting of a pericentriolar area (protein fibers) and a pair of centrioles; involved in formation of the mitotic spindle |