Micro-organisms PPT
... structure: Bacteria are singlecelled organisms, which do not completely have a nucleus. Some cause disease, but many are useful. reproduction: Bacteria reproduce very quickly. Two can very quickly become four, then eight and so on. ...
... structure: Bacteria are singlecelled organisms, which do not completely have a nucleus. Some cause disease, but many are useful. reproduction: Bacteria reproduce very quickly. Two can very quickly become four, then eight and so on. ...
Open Questions on the Origin of Eukaryotes
... Box 3. Symbiosis in Evolution: The Case of Mitochondria The idea that some membrane-bound organelles derive from endosymbiotic bacteria dates back to the early twentieth century, when Konstantin Mereschkowsky proposed such an evolutionary origin for chloroplasts (but also the nucleus) [21]. Several ...
... Box 3. Symbiosis in Evolution: The Case of Mitochondria The idea that some membrane-bound organelles derive from endosymbiotic bacteria dates back to the early twentieth century, when Konstantin Mereschkowsky proposed such an evolutionary origin for chloroplasts (but also the nucleus) [21]. Several ...
Biological diagnostics, control and treatment of the cholerae.
... namely; the object to be studied (blood, pus, sputum, faeces, etc.), test tubes or dishes with a culture of microorganisms, sterile distilled water or isotonic sodium chloride solution, a stand for a bacteriological loop, a jar with clean glass slides, and felt tip pens. Other necessary items includ ...
... namely; the object to be studied (blood, pus, sputum, faeces, etc.), test tubes or dishes with a culture of microorganisms, sterile distilled water or isotonic sodium chloride solution, a stand for a bacteriological loop, a jar with clean glass slides, and felt tip pens. Other necessary items includ ...
Activity 5.1.4: Gram Staining Introduction
... to a specific set of dyes called the Gram stain. A microbiologist named Hans Christian Gram developed the staining protocol in the 1880s, and it remains one of the first steps in classifying or identifying bacteria. If the bacteria appear purple after being treated with the stain, they are classifie ...
... to a specific set of dyes called the Gram stain. A microbiologist named Hans Christian Gram developed the staining protocol in the 1880s, and it remains one of the first steps in classifying or identifying bacteria. If the bacteria appear purple after being treated with the stain, they are classifie ...
plaque - WordPress.com
... Formation of the pellicle • Within nanoseconds after a vigorously polishing the teeth, a thin, saliva derived layer called the acquired pellicle, covers the tooth surface. • Consists of more than 180 peptides, proteins, glyco proteins, including keratins, mucins, proline – rich proteins, and other ...
... Formation of the pellicle • Within nanoseconds after a vigorously polishing the teeth, a thin, saliva derived layer called the acquired pellicle, covers the tooth surface. • Consists of more than 180 peptides, proteins, glyco proteins, including keratins, mucins, proline – rich proteins, and other ...
Fundamentals of Microbiology - Bharathiar University(Older Version
... kept in oxygenated environment (anaerobic bacteria are found in places like under the surface of earth, deep ocean, and bacteria which live in some medium). 1.2.3. GRAM POSITIVE AND GRAM NEGATIVE BACTERIA For more than a century bacteria have been classified according to their "Gram reaction" - name ...
... kept in oxygenated environment (anaerobic bacteria are found in places like under the surface of earth, deep ocean, and bacteria which live in some medium). 1.2.3. GRAM POSITIVE AND GRAM NEGATIVE BACTERIA For more than a century bacteria have been classified according to their "Gram reaction" - name ...
8C Microbes and Disease
... be seen with the naked eye, others are slightly bigger than bacterial cells. shape: Fungi come in many different shapes. structure: Fungi have the most complex structures of all the microbes. They feed off other living things. ...
... be seen with the naked eye, others are slightly bigger than bacterial cells. shape: Fungi come in many different shapes. structure: Fungi have the most complex structures of all the microbes. They feed off other living things. ...
Microbial Quality of Unregulated Herbal Medicinal Products in Kenya
... harvesting, drying, storage, handling and preparation of the herbal medicinal product. Other potential pathogenic microorganisms isolated from the samples included: Salmonella spp, Klebsiella pneumoniae, Pseudomomas aeuroginosa, Enterobacter aerogenes, and Staphylococcus aureus. Staphylococcus aurea ...
... harvesting, drying, storage, handling and preparation of the herbal medicinal product. Other potential pathogenic microorganisms isolated from the samples included: Salmonella spp, Klebsiella pneumoniae, Pseudomomas aeuroginosa, Enterobacter aerogenes, and Staphylococcus aureus. Staphylococcus aurea ...
WITHANIA SOMNIFERA BACTERIAL AND FUNGAL MICROBES Research Article
... permeability barrier to the antibacterial agent25. Susceptibility differences between Grampositive and Gram-negative bacteria may be due to cell wall structural differences between these classes of bacteria. The Gram-negative bacterial cell wall outer membrane appears to act as a barrier to many sub ...
... permeability barrier to the antibacterial agent25. Susceptibility differences between Grampositive and Gram-negative bacteria may be due to cell wall structural differences between these classes of bacteria. The Gram-negative bacterial cell wall outer membrane appears to act as a barrier to many sub ...
the ultrastructure of prokaryotic
... seam are observed (Fig. 3 A). In addition, the particle density on both faces is approximately 2-fold greater in the pocket membrane than in surrounding regions of the cell membrane (Figs. 8, 9). For comparison, it should be noted that the particle distribution on the P face of nonjunctional regions ...
... seam are observed (Fig. 3 A). In addition, the particle density on both faces is approximately 2-fold greater in the pocket membrane than in surrounding regions of the cell membrane (Figs. 8, 9). For comparison, it should be noted that the particle distribution on the P face of nonjunctional regions ...
Dadkhah and Najmabadi2
... abnormal colon cells in humans (Ulanowska et al2007). These ellagitannins protect human cells against cancer-causing agents in tobacco smoke, food additives, and petroleum-based substances. Ellagitannins act as scavengers to “bind” cancer-causing chemicals, making them inactive. The ellagitannins in ...
... abnormal colon cells in humans (Ulanowska et al2007). These ellagitannins protect human cells against cancer-causing agents in tobacco smoke, food additives, and petroleum-based substances. Ellagitannins act as scavengers to “bind” cancer-causing chemicals, making them inactive. The ellagitannins in ...
PROBIOTICS Past, Present & Future
... benefits of Probiotics. Human breast milk contains a protein that stimulates the growth of good bacteria to help with digestion. Therefore a way to create and maintain a perfect balance of gut bacteria in babies has been in existence for as long as babies have been born • Probiotics in Infant Formul ...
... benefits of Probiotics. Human breast milk contains a protein that stimulates the growth of good bacteria to help with digestion. Therefore a way to create and maintain a perfect balance of gut bacteria in babies has been in existence for as long as babies have been born • Probiotics in Infant Formul ...
History of Immunology - Immunologie für Jedermann
... Fig.3 gives an exploded view of a van Leeuwenhoek microscope. It consists of the upper body-plate (1), the lower body-plate (2), the bracket screw (3), the square bent main bracket (4), the main screw (5), the stage (6), the specimen pin (7), the focussing screw (8), the lens (9) and five rivets 1,5 ...
... Fig.3 gives an exploded view of a van Leeuwenhoek microscope. It consists of the upper body-plate (1), the lower body-plate (2), the bracket screw (3), the square bent main bracket (4), the main screw (5), the stage (6), the specimen pin (7), the focussing screw (8), the lens (9) and five rivets 1,5 ...
TR-00-04 - Svensk Kärnbränslehantering AB
... in an attempt to find an answer to this question. Microorganisms were found in all of the Maqarin groundwater but it could not be conclusively demonstrated that they are viable and growing in situ, rather than just being transported there from neutral groundwater. The diversity of the microorganisms ...
... in an attempt to find an answer to this question. Microorganisms were found in all of the Maqarin groundwater but it could not be conclusively demonstrated that they are viable and growing in situ, rather than just being transported there from neutral groundwater. The diversity of the microorganisms ...
Full Text PDF - Jaypee Journals
... abnormal proportions and demonstrates parasitism, all of the following conditions which are required for disease have been satisfied: the local environment is one in which the species can express its virulence properties, the pathogen is in numbers that exceed the threshold for that host; other bact ...
... abnormal proportions and demonstrates parasitism, all of the following conditions which are required for disease have been satisfied: the local environment is one in which the species can express its virulence properties, the pathogen is in numbers that exceed the threshold for that host; other bact ...
(Citrus aurantium), Lavender (Lavandul officinalis)
... with biblical references are frankincense, myrrh and hyssop (Bible 1984), which can be found, listed throughout the Bible. In more recent history, and through current times, one of the more important derivatives made from plants have been medicines; such as, vinblastine which is used in chemotherapy ...
... with biblical references are frankincense, myrrh and hyssop (Bible 1984), which can be found, listed throughout the Bible. In more recent history, and through current times, one of the more important derivatives made from plants have been medicines; such as, vinblastine which is used in chemotherapy ...
Microbiology of Kitchen Sponges
... Journal of Applied Microbiology. 83(6): 737-750. Sharp, K., and Walker, H., 2003. A microbiological survey of communal kitchens used by undergraduate students. International Journal of ...
... Journal of Applied Microbiology. 83(6): 737-750. Sharp, K., and Walker, H., 2003. A microbiological survey of communal kitchens used by undergraduate students. International Journal of ...
Orally Used Aminoglycosides
... Extended spectrum- refers to those antibiotics that are effective against gram positive and a significant number of gram negative bacteria. Broad spectrum- refers to antibiotics that are effective over a wide range of microbial species e.g. tetracyclines. The administration of a broad spectrum antib ...
... Extended spectrum- refers to those antibiotics that are effective against gram positive and a significant number of gram negative bacteria. Broad spectrum- refers to antibiotics that are effective over a wide range of microbial species e.g. tetracyclines. The administration of a broad spectrum antib ...
rumen microbiology-2012
... Intestinal symbionts may be commensals or benefit the animal through vitamin production and protection against pathogens. The endozoic algae of coral polyps and other invertebrates supply a major part of the animal’s nutritional needs through their photosynthetic activity. Associations with chemoaut ...
... Intestinal symbionts may be commensals or benefit the animal through vitamin production and protection against pathogens. The endozoic algae of coral polyps and other invertebrates supply a major part of the animal’s nutritional needs through their photosynthetic activity. Associations with chemoaut ...
Microbiology and Wine Preventive care and monitoring in
... that should be used in the various areas and for different samples. Following this chapter is a description of the equipment and culture media that can be used for this purpose. Further methods for microbial differentiation and colony identification are also discussed. A flow chart illustrates the v ...
... that should be used in the various areas and for different samples. Following this chapter is a description of the equipment and culture media that can be used for this purpose. Further methods for microbial differentiation and colony identification are also discussed. A flow chart illustrates the v ...
"Objectionable Organism"? - The Microbiology Network
... as a food contaminant. The FDA Bad Bug Book states that an estimated 63,400 cases of self-limiting diarrheal disease occur annually (although only 3 – 6 per year were reported to CDC for the years 2005-2007 [22]. This disease is due to the production of enterotoxin, and the FDA states “The number of ...
... as a food contaminant. The FDA Bad Bug Book states that an estimated 63,400 cases of self-limiting diarrheal disease occur annually (although only 3 – 6 per year were reported to CDC for the years 2005-2007 [22]. This disease is due to the production of enterotoxin, and the FDA states “The number of ...
Techniques in basic microbiology
... • Spirit blue agar is used to detect the hydrolysis (digestion) of fats by lipase enzyme. (digestion) of fats by lipase enzyme. Positive hydrolysis is indicated by the dark blue color that develops in colonies ...
... • Spirit blue agar is used to detect the hydrolysis (digestion) of fats by lipase enzyme. (digestion) of fats by lipase enzyme. Positive hydrolysis is indicated by the dark blue color that develops in colonies ...
Medical Microbiology Microscopic slides and media
... A stained preparation of Bacillus subtilis showing endospores as green and the vegetative cell as red – (Schaeffer-Fulton endospore stain) ...
... A stained preparation of Bacillus subtilis showing endospores as green and the vegetative cell as red – (Schaeffer-Fulton endospore stain) ...
Organism Remodel Figures 20140619
... • CONSIDERABLE IMPROVEMENT in taxonomic alignment (with other organisms) and published maintenance principles • Would rate this as reliable. • available Virus taxonomy resource is greatly improved • http://www.ictvonline.org/virusTaxonomy.asp ...
... • CONSIDERABLE IMPROVEMENT in taxonomic alignment (with other organisms) and published maintenance principles • Would rate this as reliable. • available Virus taxonomy resource is greatly improved • http://www.ictvonline.org/virusTaxonomy.asp ...
Penicillins
... Some cross-sensitivity between cephalosporins and penicillins exist - so may see allergy to both ...
... Some cross-sensitivity between cephalosporins and penicillins exist - so may see allergy to both ...
Microorganism
A microorganism (from the Greek: μικρός, mikros, ""small"" and ὀργανισμός, organismós, ""organism"") is a microscopic living organism, which may be single celled or multicellular. The study of microorganisms is called microbiology, a subject that began with the discovery of microorganisms in 1674 by Antonie van Leeuwenhoek, using a microscope of his own design.Microorganisms are very diverse and include all the bacteria and archaea and almost all the protozoa. They also include some fungi, algae, and certain animals, such as rotifers. Many macroscopic animals and plants have microscopic juvenile stages. Some microbiologists also classify viruses (and viroids) as microorganisms, but others consider these as nonliving.Microorganisms live in every part of the biosphere, including soil, hot springs, ""seven miles deep"" in the ocean, ""40 miles high"" in the atmosphere and inside rocks far down within the Earth's crust (see also endolith). Microorganisms, under certain test conditions, have been observed to thrive in the vacuum of outer space. The total amount of soil and subsurface bacterial carbon is estimated as 5 x 1017 g, or the ""weight of the United Kingdom"". The mass of prokaryote microorganisms — which includes bacteria and archaea, but not the nucleated eukaryote microorganisms — may be as much as 0.8 trillion tons of carbon (of the total biosphere mass, estimated at between 1 and 4 trillion tons). On 17 March 2013, researchers reported data that suggested microbial life forms thrive in the Mariana Trench. the deepest spot in the Earth's oceans. Other researchers reported related studies that microorganisms thrive inside rocks up to 580 m (1,900 ft; 0.36 mi) below the sea floor under 2,590 m (8,500 ft; 1.61 mi) of ocean off the coast of the northwestern United States, as well as 2,400 m (7,900 ft; 1.5 mi) beneath the seabed off Japan. On 20 August 2014, scientists confirmed the existence of microorganisms living 800 m (2,600 ft; 0.50 mi) below the ice of Antarctica. According to one researcher,""You can find microbes everywhere — they're extremely adaptable to conditions, and survive wherever they are.""Microorganisms are crucial to nutrient recycling in ecosystems as they act as decomposers. As some microorganisms can fix nitrogen, they are a vital part of the nitrogen cycle, and recent studies indicate that airborne microorganisms may play a role in precipitation and weather. Microorganisms are also exploited in biotechnology, both in traditional food and beverage preparation, and in modern technologies based on genetic engineering. A small proportion of microorganisms are pathogenic and cause disease and even death in plants and animals. Microorganisms are often referred to as microbes, but this is usually used in reference to pathogens.