Efficacy of Some Antiseptics and Disinfectants: A Review
... Within all antiseptic products, there is an active chemical agent (called a biocide) responsible for the destruction of microorganisms. These active ingredients include alcohol, iodine, triclosan, chlorohexidine gluconate, benzalkonium chloride, triclocarban, and para-chloro-meta-xylenol, and triclo ...
... Within all antiseptic products, there is an active chemical agent (called a biocide) responsible for the destruction of microorganisms. These active ingredients include alcohol, iodine, triclosan, chlorohexidine gluconate, benzalkonium chloride, triclocarban, and para-chloro-meta-xylenol, and triclo ...
Acellular and Procaryotic Microbes
... oncoviruses—cause specific types of cancer, including human cancers such as lymphomas, carcinomas, and some types of leukemia. Viruses are said to have five specific properties that distinguish them from living cells: • The vast majority of viruses possess either DNA or RNA, unlike living cells, whi ...
... oncoviruses—cause specific types of cancer, including human cancers such as lymphomas, carcinomas, and some types of leukemia. Viruses are said to have five specific properties that distinguish them from living cells: • The vast majority of viruses possess either DNA or RNA, unlike living cells, whi ...
¿Biología sintética, solución para los problemas del
... While referring to fossil fuels, the main difference between a resource and a reserve is the possibility of entering the market. A resource is any font of fuel found in the earth’s crust, while a reserve is the part of those which is economically viable to extract. Fuel reserves, contrarily to what ...
... While referring to fossil fuels, the main difference between a resource and a reserve is the possibility of entering the market. A resource is any font of fuel found in the earth’s crust, while a reserve is the part of those which is economically viable to extract. Fuel reserves, contrarily to what ...
Green algae
... Protists are found in many habitats including – anywhere there is moisture and – the bodies of host organisms. ...
... Protists are found in many habitats including – anywhere there is moisture and – the bodies of host organisms. ...
bacteria: the good, the bad and the ugly
... packed tightly into a ball-like structure called a nucleoid. They have a single chromosome that contains about 3,000 genes, depending on the type of bacteria. Bac- ...
... packed tightly into a ball-like structure called a nucleoid. They have a single chromosome that contains about 3,000 genes, depending on the type of bacteria. Bac- ...
Unknown Bi 324 lab T / R 8pm Evaluation and Conclusion The
... cell shape is not difficult to classify, and the rod shape is not particularly short CANNOT EXCLUDE UNKNOWNunknown did ferment Dextrose, Mannitol and Sucrose, no flagella viewed but unknown was motile ...
... cell shape is not difficult to classify, and the rod shape is not particularly short CANNOT EXCLUDE UNKNOWNunknown did ferment Dextrose, Mannitol and Sucrose, no flagella viewed but unknown was motile ...
Multiple bacteria in aortic aneurysms
... the presence of capsule suggested they might be more or less resistant to phagocytosis. Little agreement was found between microscopic and culture findings. When both transmission and scanning electron microscopy were applied, bacteria were found in 18 samples that were negative at anaerobic cultiva ...
... the presence of capsule suggested they might be more or less resistant to phagocytosis. Little agreement was found between microscopic and culture findings. When both transmission and scanning electron microscopy were applied, bacteria were found in 18 samples that were negative at anaerobic cultiva ...
Chapter 6: Microbial Growth
... A. Psychrophiles: “Cold-loving”. Can grow at 0 o C. Two groups: u True Psychrophiles: Sensitive to temperatures over 20 oC. Optimum growth at 15oC or below. Found in very cold environments (North pole, ocean depths). Seldom cause disease or food spoilage. u Psychrotrophs : Optimum growth at 20 to 30 ...
... A. Psychrophiles: “Cold-loving”. Can grow at 0 o C. Two groups: u True Psychrophiles: Sensitive to temperatures over 20 oC. Optimum growth at 15oC or below. Found in very cold environments (North pole, ocean depths). Seldom cause disease or food spoilage. u Psychrotrophs : Optimum growth at 20 to 30 ...
Document
... target and destroy certain structures that are only found in bacteria such as their peptidoglycan cell walls. Peptidoglycan is a polymer that makes up the cell walls of bacteria. Antibiotics also target certain proteins in bacteria that develop differently than proteins found in eukaryotic cells (St ...
... target and destroy certain structures that are only found in bacteria such as their peptidoglycan cell walls. Peptidoglycan is a polymer that makes up the cell walls of bacteria. Antibiotics also target certain proteins in bacteria that develop differently than proteins found in eukaryotic cells (St ...
2. Bacteria and archaea are the two main branches of prokaryote
... nutrients from dead organisms, and parasites, which absorb nutrients from the body fluids of living hosts. • Some of these organisms (such as Lactobacillus) have very exacting nutritional requirements, while others (E. coli) are less specific in their requirements. • With such a diversity of chemohe ...
... nutrients from dead organisms, and parasites, which absorb nutrients from the body fluids of living hosts. • Some of these organisms (such as Lactobacillus) have very exacting nutritional requirements, while others (E. coli) are less specific in their requirements. • With such a diversity of chemohe ...
Maintaining Viability of Aerobic and Anaerobic Bacteria from
... collection and transport of specimens. Three quantifiable parameters influence the performance of specimen transport: time, temperature and quality of transport medium. In this study, these parameters were evaluated for a novel dry specimen transport system, Sigma-swab (Medical Wire). Additionally, ...
... collection and transport of specimens. Three quantifiable parameters influence the performance of specimen transport: time, temperature and quality of transport medium. In this study, these parameters were evaluated for a novel dry specimen transport system, Sigma-swab (Medical Wire). Additionally, ...
PRINCIPAL OF FOOD MICROBIOLOGY
... (ii) Presence and concentration of gases in the environment (ii) Relative humidity of food storage environment. (1) Temperature of storage Microorganisms, individually and as a group, grow over a very wide range of temperatures. The lowest temperature at which a microorganism has been reported to gr ...
... (ii) Presence and concentration of gases in the environment (ii) Relative humidity of food storage environment. (1) Temperature of storage Microorganisms, individually and as a group, grow over a very wide range of temperatures. The lowest temperature at which a microorganism has been reported to gr ...
Growth Curve (four phases)
... Respiration: the energetically favorable oxidation of organic matter by an electron acceptor such as oxygen ...
... Respiration: the energetically favorable oxidation of organic matter by an electron acceptor such as oxygen ...
File - Norazli@CUCST
... Organisms are identified by their colonial and microscopic morphology, growth on selective media, oxygen tolerance, and biochemical characteristics. These include sugar fermentation, bile solubility, esculin, starch, and gelatin hydrolysis, casein and gelatin digestion, catalase, lipase, lecithinase ...
... Organisms are identified by their colonial and microscopic morphology, growth on selective media, oxygen tolerance, and biochemical characteristics. These include sugar fermentation, bile solubility, esculin, starch, and gelatin hydrolysis, casein and gelatin digestion, catalase, lipase, lecithinase ...
Prokaryotes
... 13. The oldest reliable evidence of life exists in the form of microfossils found in ancient rocks dating back at least 3.4 billion years. 14. It’s even probable that life existed long before this. 15. What were these early life forms like? 16. It’s interesting that the earliest organisms found ...
... 13. The oldest reliable evidence of life exists in the form of microfossils found in ancient rocks dating back at least 3.4 billion years. 14. It’s even probable that life existed long before this. 15. What were these early life forms like? 16. It’s interesting that the earliest organisms found ...
Phytoplanktons in Different Silicate Solutions
... environments in extraterrestrial situations. There are distinct Silicon accumulator plants like Cyperaceae, Graminae, Juncaceae and Moquiles spp. Organisms like marine phytoplanktons, marine brown algae, ‘horsetails’, foraminifera and porifera contain enough silicon, in the range of 60,000-4,37,000 ...
... environments in extraterrestrial situations. There are distinct Silicon accumulator plants like Cyperaceae, Graminae, Juncaceae and Moquiles spp. Organisms like marine phytoplanktons, marine brown algae, ‘horsetails’, foraminifera and porifera contain enough silicon, in the range of 60,000-4,37,000 ...
EOSIN METHYLENE BLUE AGAR (EMB) EMB agar, a differential
... Mannitol salt agar is a selective and differential medium for the isolation of pathogenic staphylococci, especially when contamination of the specimen by other bacterial is high (e.g. fecal sample). The contents include proteose peptone, bacto-beef extract, difco mannitol; bactophenol red, sodium ch ...
... Mannitol salt agar is a selective and differential medium for the isolation of pathogenic staphylococci, especially when contamination of the specimen by other bacterial is high (e.g. fecal sample). The contents include proteose peptone, bacto-beef extract, difco mannitol; bactophenol red, sodium ch ...
Identifying Uropathogens
... ve cocci and coccobacilli don't usually cause UTI. However, it could cause urethritis associated with sexual transmitted diseases. One example is Neisseria gonorrhoeae. For now, we will focus on gram –ve bacilli only. ...
... ve cocci and coccobacilli don't usually cause UTI. However, it could cause urethritis associated with sexual transmitted diseases. One example is Neisseria gonorrhoeae. For now, we will focus on gram –ve bacilli only. ...
History of Microbiology PowerPoint Lecture
... science-related PowerPoints, articles and images. The site is designed to be a helpful resource for students, educators, and anyone interested in learning about science. • The SPO Virtual Classrooms offer many educational resources, including practice test questions, review questions, lecture PowerP ...
... science-related PowerPoints, articles and images. The site is designed to be a helpful resource for students, educators, and anyone interested in learning about science. • The SPO Virtual Classrooms offer many educational resources, including practice test questions, review questions, lecture PowerP ...
Full file at http://testbankscafe.EU/ Test-Bank-for-Clinical
... c. the same organism must be found in all cases of a given disease. d. organisms from pure culture must reproduce the disease in a susceptible animal. ANSWER: a (Level 1, Objective 3) 14. The scientist who improved the stain used for observing the tubercle bacilli by using their acid-fast property i ...
... c. the same organism must be found in all cases of a given disease. d. organisms from pure culture must reproduce the disease in a susceptible animal. ANSWER: a (Level 1, Objective 3) 14. The scientist who improved the stain used for observing the tubercle bacilli by using their acid-fast property i ...
Lab 1
... sugars and amino acids. While many have no special requirements beyond this, others have requirements for particular growth factors, that is, amino acids or vitamins. A defined (also called synthetic) medium contains chemically identified substances in known amounts. A complex (also called rich) med ...
... sugars and amino acids. While many have no special requirements beyond this, others have requirements for particular growth factors, that is, amino acids or vitamins. A defined (also called synthetic) medium contains chemically identified substances in known amounts. A complex (also called rich) med ...
Bacterial Flagella-Based Propulsion and On/Off Motion Control of
... bacteria while they are provided with the required chemical energy source and preferred ...
... bacteria while they are provided with the required chemical energy source and preferred ...
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.