MICROBIOLOGY
... – A square centimeter of skin holds about 100,000 microbes – Humans are free of microbes until they pass through the birth canal ...
... – A square centimeter of skin holds about 100,000 microbes – Humans are free of microbes until they pass through the birth canal ...
ANTIBIOTIC
... polymyxin and bacitracin), and B. cereus produces zwittermicin. Bacillus species have the relatively rare ability to form a type of resting cell called an endospore. Bacilli are Gram-positive, rod-shaped, aerobic bacteria that live in the soil. They play an important ecological role in aerobic decom ...
... polymyxin and bacitracin), and B. cereus produces zwittermicin. Bacillus species have the relatively rare ability to form a type of resting cell called an endospore. Bacilli are Gram-positive, rod-shaped, aerobic bacteria that live in the soil. They play an important ecological role in aerobic decom ...
IOSR Journal of Dental and Medical Sciences (IOSR-JDMS)
... It is easy to understand and perform. ...
... It is easy to understand and perform. ...
bacteria - www .alexandria .k12 .mn .us
... weight loss. Many years ago, this disease was referred to as "consumption" because without ...
... weight loss. Many years ago, this disease was referred to as "consumption" because without ...
this PDF file - Journal of Arthropod
... cluding Salmonella spp., Shigella spp., Campylobacter spp., Pseudomonas aeruginosa and K. pneumonia have been isolated from cockroaches (Cotton et al. 2000). Antibiotic resistance is a serious publichealth problem, reduced effectiveness of antibiotics results in greater patient mortality rates, prol ...
... cluding Salmonella spp., Shigella spp., Campylobacter spp., Pseudomonas aeruginosa and K. pneumonia have been isolated from cockroaches (Cotton et al. 2000). Antibiotic resistance is a serious publichealth problem, reduced effectiveness of antibiotics results in greater patient mortality rates, prol ...
Chapter 27(Bacteria and Archaea)
... • An important feature of nearly all prokaryotic cells is their cell wall, which maintains cell shape, provides physical protection, and prevents the cell from bursting in a hypotonic environment. • Eukaryote cell walls are made of cellulose or chitin. • Bacterial cell walls contain peptidoglycan, a ...
... • An important feature of nearly all prokaryotic cells is their cell wall, which maintains cell shape, provides physical protection, and prevents the cell from bursting in a hypotonic environment. • Eukaryote cell walls are made of cellulose or chitin. • Bacterial cell walls contain peptidoglycan, a ...
Amoxicillin - Mar Vista Animal Medical Center
... wasted. Penicillin is also a short-acting medication, with half of the amount circulating being removed from the body every half hour. Not all bacteria have the type of cell wall which is susceptible to destruction by penicillin. (Bacteria are classified as Gram negative or Gram positive, depending ...
... wasted. Penicillin is also a short-acting medication, with half of the amount circulating being removed from the body every half hour. Not all bacteria have the type of cell wall which is susceptible to destruction by penicillin. (Bacteria are classified as Gram negative or Gram positive, depending ...
this resource 4.28 MB
... putrid sputum that can be detected on the next ward. • A chest xray is taken, and treatment with metronidazole is added. ...
... putrid sputum that can be detected on the next ward. • A chest xray is taken, and treatment with metronidazole is added. ...
A i\IODIFICATION OF THE METHOD FOR DETERMINING THE
... inhibit the multiplication of diphtheria bacilli, the indol reaction appeared intensely after the acid formed had been sufficiently neutralized by alkali production to give a feebly blue color with neutral litmus, or when the acidity, according to phenolphthaiein, was about 1 per cent of a normal so ...
... inhibit the multiplication of diphtheria bacilli, the indol reaction appeared intensely after the acid formed had been sufficiently neutralized by alkali production to give a feebly blue color with neutral litmus, or when the acidity, according to phenolphthaiein, was about 1 per cent of a normal so ...
Document
... high concentration of about 7.5% NaCl that will keep many bacteria except staphylococcus from growing ii. Also has mannitol in there as the sole carbohydrate source with a pH indicator—a SA will produce acid from mannitol; the plate will change from red to yellow (depicted on the image on the slide) ...
... high concentration of about 7.5% NaCl that will keep many bacteria except staphylococcus from growing ii. Also has mannitol in there as the sole carbohydrate source with a pH indicator—a SA will produce acid from mannitol; the plate will change from red to yellow (depicted on the image on the slide) ...
cilia.
... · The euglena is unique in that it has characteristics of both a plant and an animal, it contains chloroplasts that photosynthesize and also can consume other organisms as well. Paramecium—Protist with Cilia · These protists move by beating tiny hair-like structures called cilia. · The cilia act as ...
... · The euglena is unique in that it has characteristics of both a plant and an animal, it contains chloroplasts that photosynthesize and also can consume other organisms as well. Paramecium—Protist with Cilia · These protists move by beating tiny hair-like structures called cilia. · The cilia act as ...
Chapter 2 Even a superficial examination of the microbial world
... bacilli). Bacillus megaterium is a typical example of a bacterium with a rod shape. Bacilli differ considerably in their length-towidth ratio, the coccobacilli being so short and wide that they resemble cocci. The shape of the rod’s end often varies between species and may be flat, rounded, cigar-s ...
... bacilli). Bacillus megaterium is a typical example of a bacterium with a rod shape. Bacilli differ considerably in their length-towidth ratio, the coccobacilli being so short and wide that they resemble cocci. The shape of the rod’s end often varies between species and may be flat, rounded, cigar-s ...
Antibacterials in household products
... antibiotics and antibacterials both attack bacteria, these terms have evolved over the years to mean two different things. Antibacterials are now most commonly described as agents used to disinfect surfaces and eliminate potentially harmful bacteria. Unlike antibiotics, they are not used as medicine ...
... antibiotics and antibacterials both attack bacteria, these terms have evolved over the years to mean two different things. Antibacterials are now most commonly described as agents used to disinfect surfaces and eliminate potentially harmful bacteria. Unlike antibiotics, they are not used as medicine ...
video slide - Course Notes
... • An important feature of nearly all prokaryotic cells is their cell wall, which maintains cell shape, provides physical protection, and prevents the cell from bursting in a hypotonic environment. • Eukaryote cell walls are made of cellulose or chitin. • Bacterial cell walls contain peptidoglycan, a ...
... • An important feature of nearly all prokaryotic cells is their cell wall, which maintains cell shape, provides physical protection, and prevents the cell from bursting in a hypotonic environment. • Eukaryote cell walls are made of cellulose or chitin. • Bacterial cell walls contain peptidoglycan, a ...
MICRB 106: Microbial Diversity Assignment
... 2. What are some unique ecological and physiological properties of extreme halophilic archea. Specifically, what nutritional classes define Halobacterium halobium; what protein involved in light harvest is related to man; and why is there a commercial interest in this archaea? 3. What are some uniqu ...
... 2. What are some unique ecological and physiological properties of extreme halophilic archea. Specifically, what nutritional classes define Halobacterium halobium; what protein involved in light harvest is related to man; and why is there a commercial interest in this archaea? 3. What are some uniqu ...
The ways in which bacteria resist antibiotics
... complicated. Influential factors are the antibacterial spectrum of the drug and its pharmacokinetics, such as the building up of concentrations in the gastrointestinal tract, skin and saliva. These factors will influence the extent of impact on the normal flora.8 Poor patient compliance with dosage ...
... complicated. Influential factors are the antibacterial spectrum of the drug and its pharmacokinetics, such as the building up of concentrations in the gastrointestinal tract, skin and saliva. These factors will influence the extent of impact on the normal flora.8 Poor patient compliance with dosage ...
Microbes and Food
... How does the microbe help or hurt humans? One of the main features of the Lactobacillus bifidus is its ability to aid in the synthesis of the B vitamins by helping to create a healthy intestinal flora. Since the Lactobacillus bifidus is very dominant in the intestinal flora and a “friendlybacteria” ...
... How does the microbe help or hurt humans? One of the main features of the Lactobacillus bifidus is its ability to aid in the synthesis of the B vitamins by helping to create a healthy intestinal flora. Since the Lactobacillus bifidus is very dominant in the intestinal flora and a “friendlybacteria” ...
Human Bacteria In The Production Of Human Cancer
... immune system. Such bacteria were derived from "ubiquitous bacteria" normally residing in all human beings. Various researchers have reported the cancer germ as an intracellular and an extracellular parasite, meaning that the bacteria can be found both within and outside the cell. The shape of the ...
... immune system. Such bacteria were derived from "ubiquitous bacteria" normally residing in all human beings. Various researchers have reported the cancer germ as an intracellular and an extracellular parasite, meaning that the bacteria can be found both within and outside the cell. The shape of the ...
PROKARYOTES: BACTERIA AND ACHEAEA
... • Most prokaryotes are unicellular, although some species form colonies • Most prokaryotic cells are 0.5–5 µm, much smaller than the 10–100 µm of many eukaryotic cells • Prokaryotic cells have a variety of shapes • The three most common shapes are spheres (cocci), rods (bacilli), and spirals © 2011 ...
... • Most prokaryotes are unicellular, although some species form colonies • Most prokaryotic cells are 0.5–5 µm, much smaller than the 10–100 µm of many eukaryotic cells • Prokaryotic cells have a variety of shapes • The three most common shapes are spheres (cocci), rods (bacilli), and spirals © 2011 ...
Molecular Microbial Ecology of the Rhizosphere
... till now, genome sequencing of DSM14405T revealed numerous potential virulence factors. For example, the type VI secretion system (T6SS), a bacterial transport system, recently discovered in a number of important human, animal, and plant pathogenic Gram-negative bacteria, has drawn attention of many ...
... till now, genome sequencing of DSM14405T revealed numerous potential virulence factors. For example, the type VI secretion system (T6SS), a bacterial transport system, recently discovered in a number of important human, animal, and plant pathogenic Gram-negative bacteria, has drawn attention of many ...
Section A revision booklet
... Variety of living organisms (fungi and protocists) Fungi: These are organisms that are not able to carry out photosynthesis; their body is usually organised into a mycelium made from thread like structures called hyphae, which contain many nuclei; some examples are single-celled; they have cell wal ...
... Variety of living organisms (fungi and protocists) Fungi: These are organisms that are not able to carry out photosynthesis; their body is usually organised into a mycelium made from thread like structures called hyphae, which contain many nuclei; some examples are single-celled; they have cell wal ...
Bacteria
Bacteria (/bækˈtɪəriə/; singular: bacterium) constitute a large domain of prokaryotic microorganisms. Typically a few micrometres in length, bacteria have a number of shapes, ranging from spheres to rods and spirals. Bacteria were among the first life forms to appear on Earth, and are present in most of its habitats. Bacteria inhabit soil, water, acidic hot springs, radioactive waste, and the deep portions of Earth's crust. Bacteria also live in symbiotic and parasitic relationships with plants and animals. They are also known to have flourished in manned spacecraft.There are typically 40 million bacterial cells in a gram of soil and a million bacterial cells in a millilitre of fresh water. There are approximately 5×1030 bacteria on Earth, forming a biomass which exceeds that of all plants and animals. Bacteria are vital in recycling nutrients, with many of the stages in nutrient cycles dependent on these organisms, such as the fixation of nitrogen from the atmosphere and putrefaction. In the biological communities surrounding hydrothermal vents and cold seeps, bacteria provide the nutrients needed to sustain life by converting dissolved compounds, such as hydrogen sulphide and methane, to energy. On 17 March 2013, researchers reported data that suggested bacterial life forms thrive in the Mariana Trench, which with a depth of up to 11 kilometres is the deepest part of the Earth's oceans. Other researchers reported related studies that microbes thrive inside rocks up to 580 metres below the sea floor under 2.6 kilometres of ocean off the coast of the northwestern United States. According to one of the researchers, ""You can find microbes everywhere — they're extremely adaptable to conditions, and survive wherever they are.""Most bacteria have not been characterized, and only about half of the phyla of bacteria have species that can be grown in the laboratory. The study of bacteria is known as bacteriology, a branch of microbiology.There are approximately ten times as many bacterial cells in the human flora as there are human cells in the body, with the largest number of the human flora being in the gut flora, and a large number on the skin. The vast majority of the bacteria in the body are rendered harmless by the protective effects of the immune system, and some are beneficial. However, several species of bacteria are pathogenic and cause infectious diseases, including cholera, syphilis, anthrax, leprosy, and bubonic plague. The most common fatal bacterial diseases are respiratory infections, with tuberculosis alone killing about 2 million people per year, mostly in sub-Saharan Africa. In developed countries, antibiotics are used to treat bacterial infections and are also used in farming, making antibiotic resistance a growing problem. In industry, bacteria are important in sewage treatment and the breakdown of oil spills, the production of cheese and yogurt through fermentation, and the recovery of gold, palladium, copper and other metals in the mining sector, as well as in biotechnology, and the manufacture of antibiotics and other chemicals.Once regarded as plants constituting the class Schizomycetes, bacteria are now classified as prokaryotes. Unlike cells of animals and other eukaryotes, bacterial cells do not contain a nucleus and rarely harbour membrane-bound organelles. Although the term bacteria traditionally included all prokaryotes, the scientific classification changed after the discovery in the 1990s that prokaryotes consist of two very different groups of organisms that evolved from an ancient common ancestor. These evolutionary domains are called Bacteria and Archaea.