PPT-Difference between Gram-Positive and Gram-Negative Bacteria

Gram Positive Gram Negative GramPositive bacteria GramNegative bacteria Cell Wall A singlelayered smooth cell wall  A doublelayered wavy cellwall Cell Wall thickness The thickness of the cell wall is 20 to 80 . بسم الله الرحمن الرحيم. Diagnostic Medical Microbiology-Laboratory Manual. Antimicrobial . Chemotherapy . to . Control Microorganisms. . Usually, microbial controls are used to avoid contamination of pure cultures, prevent infection, or treat existing diseases.. A. Introduction – There are multiple criteria by which you can classify an organism. 1. Metabolic Activities (Carbon, Energy & Oxygen sources). A) Recall that microbes may vary in their carbon & energy sources. Part-2. Sulfur Dioxide(SO2) and Sulfites(SO3). Sulfur dioxide, Sodium sulfite(Na2SO3), Sodium bisulfide(NaHSO3), and Sodium . metabisulfite. (Na2S2O5) are used to control microorganisms and insects in soft fruits, lemon juices, beverages, sausages, pickles, and fresh shrimp.. Last day. Brief . introduction to bacteria, . Archaebacteria. , and bacterial culturing media. . Today. We will start by looking at our cultures, and providing colony descriptors. . We . will learn about the Biology of Bacteria. Biology and Biotechnology department. Differential . stain separate bacteria into group . . Gram . Stain :. Differentiate bacteria into 2 groups:. Gram . positive bacteria . Gram . negative bacteria . continued. Gram Stain. When bacteria are treated with a dye made up of crystal violet and iodine they react in one of two ways. . Bacteria . cells that appear purple are gram-positive and bacteria that change to pink are gram-negative. . Winter 2012. Ubiquity. What organisms grow best at room temperature? ___°C? . At body temperature? = ___°C?. What kind of medium is TSA? . Appearance of growth on plates. Bacteria . vs. fungi (molds)?. Bacteriology: . study . of . bacteria. Mycology: . study . of . fungi. Protozoology: . study . of . protozoa. Phycology (or algology): . study . of . algae. Parasitology: . study . of . parasites. Immunology: . Gram-Positive Bacilli Bacteria Dr. Alan N. Talabani Lecturer at College of Medicine/University of Sulaimani Gram-Positive Bacteria I- Gram Positive bacteria A- Gram positive cocci B- Gram positive rods Presenter: Dr. Mohammad Qadi. Introduction. Several studies evaluated resistance among . clinical. isolates in West Bank-Palestine .  . showed increasing and . alarming. rates of antimicrobial resistance . We can characterize prokaryotes by structure. Morphology of Prokaryotic Cells. Most diverse group of cellular microbes. Thrive in various habitats. Only a few . are capable . of colonizing humans and causing disease. 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 Size of a Bacterial Cell: . There are great variations in size of bacteria. . They . measure from 0.75 µ to 1.5 µ but on an average each cell of bacterium measures about 1.25 µ to 2 µ . ( . in . diameter). .