* Length of L. lactis ranges from 0.5-1.5 micrometer (µm). * L. lactis does not produce spores (nonsporulating). * No capsule formation. * L. lactis grow in microaerophilic conditions * L. lactis are non motile. * L. lactis are Gram (+ive). * L. lactis are catalase (-ive). * L. lactis have low-GC content. * L. lactis are acid-tolerant * Optimum growth temperature is 30oC at pH 6.8. * L. lactis are not produce CO2 in MRS Broth. Colony Morphology: * No
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smear my bacteria on a liquid medium. I then proceeded to incubate the medium for 24-48 hours. 1. GRAM STAIN The next step I took in finding my unknown bacteria was to gram stain it. This is used to differentiate the bacteria. The different staining reagents are: crystal violet‚ grams iodine‚ acetone-alcohol‚ and grams safranin. Under the microscope it was a pink color‚ which means Gram Negative. Also‚ the shape was a rod. 2. KLIGER’S IRON
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an agar plate‚ drawed the loop very lightly over the surface while being careful not to break the surface. A zig-zag motion used. -The name wrote on the plate ‚then placed it’s into incubator in a 37 degree incubator for 48 hours. Result of Gram stain: Result of Isolation of bacteria in the following pictures : Disscusion : Microorganism are organism that are too small and cannot be seen with naked
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Bacteria Prokaryotic & Eukaryotic Cells 1-7.Bacteria cells reproduce ASEXUALLY BY BINARY FISSION. Asexually means the offspring comes from one parent Draw what Binary Fission of a bacteria looks like: 8. Label the parts of this prokaryotic cell. [pic] 9. Name several structures that are found in eukaryotic‚ but NOT prokaryotic cells. 10. What type of cells are the most numerous on Earth? 11. What are the most common type of prokaryotic cells? 12. How old are the earliest
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specimen. ♥ Correctly handling the specimen ♥ Quickly transporting the specimen to the lab. ♥ Once the specimen reaches the lab it is cultured and identified. Dr.T.V.Rao MD 3 Microbe Identification • Identification measures include: ♣ Microscopy (staining) ♣ growth on enrichment‚ selective‚ differential or characteristic media ♣ specimen biochemical test (rapid test methods) ♣ immunological techniques ♣ molecular (genotypic) methods. • After the microbe is identified for clinical samples it is
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any two (2) microorganisms that are not classified as prokaryotes are and The two (2) genera of bacteria that are capable of producing spores are and b) c) d) An example of a Gram positive bacteria is example of a Gram negative bacteria. and is an e) Three (3) common differential staining methods used in microbiology are ‚ and "Ubiquitous" in microbiology means The minimum inhibitory concentration (MIC) means Of more than three thousand (3000) species of bacteria‚ only 10%
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Abstract The primary focus of this lab was on microscopy and simple stains. Crystal violet and Carbol fuchsine‚ simple staining components‚ were used to stain the slide in order to see the different microbes in order to determine their cellular shape and identify unknown ones by comparing. Introduction Bacterial cells are usually colorless because cytoplasm‚ for the most part‚ is transparent. Since the bacteria are colorless‚ it is almost essential to add a stain to make the bacteria more visible
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Background: In Jane Horack’s article “Staphylococcus epidermidis”‚ S. epidermidis is described as “gram-positive cocci bacteria that are part of the normal flora on the skin and nasal passages.” The article goes on to say that the species was originally named Staphylococcus Albus by microbiologist Rosenback in 1884. When viewed under a microscope S. epidermidis will appear in chains‚ pairs‚ or grape-like clusters (Horak 1). Taxonomically‚ the species S. epidermidis falls in the genus Staphylococcus
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B.Sc. First Year Semester – I Paper I .Fundamentals of Microbiology Credit - 1 1 Scope & relevance of Microbiology i) ii) iii) Definition & concepts Types of microorganism Distribution of microorganisms in nature 2. Development of Microbiology as a Scientific Discipline 1.1 History i) ii) iii) iv) v) vi) Credit – 2 Early observation of microorganisms Spontaneous generation conflict : Contribution of scientists Recognition of the microbial role in diseases. Koch’s postulates Recognition of microbial
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Advances in Fish Microbiology and Pathology (FIS 508) Dr. Akinyemi‚ A. A. Aquaculture and Fisheries Management University of Agriculture‚ Abeokuta‚ NIGERIA. Microorganisms • Microorganisms is the existence of every minute living organisms or they are living features that can be seen with the aid of microscope‚ microscope‚ most of them are normally singlecelled while some may exist in multicellular forms. • These microorganism‚ though minute and microscopic‚ are a very powerful
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