PPT-Lec . 7 Gram-negative cocci

Neissereae Medical Microbiology By Asst Prof Dr Shaimaa Al Salihy Neisseriae Neisseriae The most important species are Neisseria gonorrhoea gonococci Neisseria meningitidis. 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.. Gram positive cocci. Bile-Esculin. Enterococcus. identification. Esculin. .  . Esculitin. + Glucose. esculitin. + Fe  . Ferric. citrate (. dark. . brown. ). Selective. media. Bile . added. 11 Trading Strategies. . Lec. 11: Options Trading Strategies . (Hull, Ch. 11). Investment/Hedging Strategies. . (Hull, Ch. 11.1). Long Stock, Short Call {+ S, - C} = Covered Call Write. Example: . Internal Structures:. cytoplasm. nucleoid. ribosomes. Boundaries:. cell membrane. cell wall. capsule. Appendages:. flagellum. pili. Shapes of Bacteria. Bacteria Identification Criteria. Shapes. EffectiveSeptember 20101NutritionandDieteticsDegreeBachelorofScience in Nutritionand DieteticsContactDr CathyEnglishDepartmentof NutritionandFood Scienceshttp//celsuriedu/nfs/110RangerHallPhone401874- Presenter: Dr. Mohammad Qadi. Introduction. Several studies evaluated resistance among . clinical. isolates in West Bank-Palestine .  . showed increasing and . alarming. rates of antimicrobial resistance . Microorganisms. Also called microbes. Cannot be seen without a microscope. May be . non-pathogen . or . pathogen. depending on where it is in body . Microorganisms. Aerobes. are a variety of bacteria that require oxygen to grow. . Bacteriology. Systemic Bacteriology. Objective : Pyogenic cocci. Pyogenic cocci : Pyogenic means “ pus forming”. Cocci means “spherical bacteria”. They include:. 1. Staphylococcus (Gram positive). 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 Faculty: Dr. Rakesh Sharda OBJECTIVES OF STAINING Improves visibiltiy by greater contrast between the organism and the background, differentiate various morphological types (by shape, size, arrangeme Neisseria. spp.. Gram’s negative Diplococci . Kidney shape with flat opposing edge. Neisseria. spp.. PATHOGENIC:. N. gonorrhoea. (gonococci, G.C) . . Gonorrhoeae. .. N. meningitidis. Professor Diane Hilker. Exp. 16: Identification of Unknown Microorganisms. Overview. TODAY:. Interpret Temp. Study (Exp. 7-Table1). Determine Optimum Temp.. Any contaminants in tubes?. Observe/Describe Colony Morphology Plate. Enterobacteriaceae. family . By:. Asst. Prof. Dr. Shaima’a Al-. Salihy. Learning objectives:. After this . lec. . You must be able to:. Describe microscopic morphology and cultural biochemical characteristics of each member in this family.. 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 .