PPT-Genus Streptococcus Gram positive, Catalase negative

cocci Practical No 9 GENERAL CHARACTERISTIC Gve cocci arrange in chains or pairs Some strains are capsulated Majority are facultative anaerobic few are obligatory anaerobic. Dr. Nariman Sindi. 1. classification. The classification of streptococci is based on:. Hemolysis:. Alpha-. hemolytic. streptococci (. α. -. hemolytic. ):. Incomplete lysis (partial hemolysis) of red blood cells (RBCs) in the agar resulting in the formation of a greenish zone around their colonies.. STREPTOCOCCUS 15.1INTRODUCTIONStreptococci Streptococci are Gram-positive cocci arranged in chains or pairs. They are part ofStreptococcus pyogenes causing pyogenic After reading this lesson, you will Clinical Bacteriology II. CLS 413. Mrs. . Deemah. . Dabbagh. CLS Department. College of Applied Medical Sciences. King Saud University. Course Content. Enterobacteriacae. Lactose Fermenters:. Escherichia coli. Gram positive cocci. Bile-Esculin. Enterococcus. identification. Esculin. .  . Esculitin. + Glucose. esculitin. + Fe  . Ferric. citrate (. dark. . brown. ). Selective. media. Bile . added. Goals and . Objectives:. Identification of Unknown Bacteria. : individual assignment. Use your data from the 12 possible unknowns for comparison and your Dichotomous Key to solve for your unknown based on the results you collect.. Physical differences & clinical . signifigance. . . Figure 4.8b. Gram- positive bacteria. Gram-negative bacteria. Figure 4.8a. Gram-Positive cell walls. Teichoic acids:. Lipoteichoic acid links to plasma membrane. Internal Structures:. cytoplasm. nucleoid. ribosomes. Boundaries:. cell membrane. cell wall. capsule. Appendages:. flagellum. pili. Shapes of Bacteria. Bacteria Identification Criteria. Shapes. & Resilience. Homework. Review pp. 8-23 in your textbook and answer . 1.1 even questions. 1.2, questions 1, 3, 5. Define: . unicellular. & . multicellular. prokaryotic. & . eukaryotic . . objectives. * Study systemic bacteriology. * Describe Genus Streptococcus, its types, pathogenesis, and lab diagnosis. . When grown on sheep blood agar, streptococci display . one. of . three types . Dated-09/12/2020. . 2. nd. . year . professional course. Dr. . Sudha. . Kumari. Assistant Professor. Department of Veterinary . Dairy Foods Science Notes (D raft 06 - 10) The Microscopic Examination of Milk Characterization of Milk Bacteria and Cells The microscope has been used to observe and count bacteria and somatic cells 1 The slide is washed in water; excess water is removed using a blotting paper, dried in air and heat fixed before observing under microscope. Those bacteria that hold on to primary dye-iodine comple Gram Positive. Gram Negative. Gram-Positive bacteria. Gram-Negative bacteria. Cell Wall. A single-layered, smooth cell wall.  A double-layered, wavy cell-wall. Cell Wall thickness. The thickness of the cell wall is 20 to 80 . Lab. . 3. By. Assistant lecturer. Zainab farooq . shafeeq. Principle. The Gram stain is the most useful and widely employed differential stain in bacteriology.. It divides bacteria in to two groups (Gram positive and Gram negative bacteria..