PPT-Special Stain

Cytochemical Reactions in Acute Leukemia Blasts Identified Cellular Element Stained Cytochemical Reaction Myeloblasts strong positive monoblasts faint positive Neutrophil primary granules Myeloperoxidase MPO. Objective: to understand how blood stains can give forensic scientists information about a crime.. blood. Blood is what moves oxygen around our body from the lungs to the organs that need oxygen and then back the lungs for more oxygen.. A stain is a substance that adheres to a cell, giving the cell color. .. The presence of color gives the cells significant contrast so are much more visible. . Different stains have different affinities for different organisms, or different parts of . BIOLOGY & BIOTECHNOLODY DEPARTMENT. In our laboratory, . bacterial morphology . (form and structure) may be examined in two ways:. By observing . living unstained organisms. (. wet mount. ).. 2. By . A stain is a substance that adheres to a cell, giving the cell color. .. The presence of color gives the cells significant contrast so are much more visible. . Different stains have different affinities for different organisms, or different parts of . 5 . Staining . Technique . Practical Of Histopathology. . El-. Hindi.M. . & . Abdelmoneim.A. . . . Objectives: . 1. Understand the . classification of Stains. . . 2. Understand . basic tissue staining methods . Biology and Biotechnology department. Differential . stain separate bacteria into group . . Gram . Stain :. Differentiate bacteria into 2 groups:. Gram . positive bacteria . Gram . negative bacteria . Lab #4 . Medgar Evers College. Bio 261 Microbiology. Prof. Santos. Aim #1 exercise 14. Capsular staining. Capsule- extracellular layer composed of polysaccharides found in some bacteria that plays a role in immunity and adhesion.. 5 . Staining . Technique . . Objectives: . 1. Understand the . classification of Stains. . . 2. Understand . basic tissue staining methods . used in the clinical histology laboratory.. . 3. Identification the . .. The presence of color gives the cells significant contrast so are much more visible. . Different stains have different affinities for different organisms, or different parts of . organisms. They are used to differentiate different types of organisms or to view specific parts of organisms. Basic vs. acidic dyes. Differential Stain. Primary stain (stains all cells on slide). Decolorizing step (removes stain from certain types of cells). Counterstain (stains the decolorized cells). Differentiate bacteria into two large groups (the Gram Positive and the Gram negative).. Gram status is important in medicine; the presence or absence of a cell wall will change the bacterium's susceptibility to some antibiotics. tissues, cells, cell components, cell contents, or microorganisms.. *The stain may be . natural or synthetic. . . *The object stained is called the . substrate. . . *Staining facilitates the observation of a substrate by introducing . This. procedure is called . so,when. certain bacteria or some of their . structures could not be stained or seen or being differential with other bacteria cells when using the ordinary . staining,such. . hussin. Dept of pathology. 13 march 2018. H&E. . stain. . is. . routine. . stain.. It . is. . the. . preliminary . or. . the. . first. . stain. . applied. . to. . the. . tissue. sections.