PDF
... water enters the tube at one end, flows through the tube under the UV bulb, and through the outlet at the other end of the tube. The UV bulb emits UV-C light, which kills microorganisms by damaging their genetic material (DNA). This makes the pathogens unable to reproduce. ...
... water enters the tube at one end, flows through the tube under the UV bulb, and through the outlet at the other end of the tube. The UV bulb emits UV-C light, which kills microorganisms by damaging their genetic material (DNA). This makes the pathogens unable to reproduce. ...
Bacterial Infections
... Cell wall contains less peptidoglycan & more lipid Aerobic Use oxygen for metabolism Anaerobic Don’t use oxygen for metabolism, oxygen may be highly toxic to them ...
... Cell wall contains less peptidoglycan & more lipid Aerobic Use oxygen for metabolism Anaerobic Don’t use oxygen for metabolism, oxygen may be highly toxic to them ...
A Differential Aeration Cell consists of an oxygen concentration cell
... Differential Aeration Cells also provide a condition for Sulphate-Reducing Bacteria such as Desulfobacter to grow. Types: Associated with corrosion of Stainless Steel; Pseudomonas; Sphaerotilus; Desulfovibrio Bacteria that act on Carbon steel forming thick deposits of ferrous hydroxide; Filamentous; ...
... Differential Aeration Cells also provide a condition for Sulphate-Reducing Bacteria such as Desulfobacter to grow. Types: Associated with corrosion of Stainless Steel; Pseudomonas; Sphaerotilus; Desulfovibrio Bacteria that act on Carbon steel forming thick deposits of ferrous hydroxide; Filamentous; ...
bacteria
... Bacteria Facts • unicellular: Each organism is made of one cell. • prokaryotic: pro means before karyotic means core This term is used to describe the lack of a nucleus in a bacterium cell. • microscopic: until they multiple into millions to form a colony which is visible by the human eye • found ev ...
... Bacteria Facts • unicellular: Each organism is made of one cell. • prokaryotic: pro means before karyotic means core This term is used to describe the lack of a nucleus in a bacterium cell. • microscopic: until they multiple into millions to form a colony which is visible by the human eye • found ev ...
Antiseptics and disinfectants
... or leads to death of microorganisms in the environment surrounding the patient or on the surface of the body. Antiseptics - (anti- against; septicas - putrid). This is a group of medicines that are used to eliminate pathogens in the wound (skin, mucous membranes) in the gastrointestinal tract and ur ...
... or leads to death of microorganisms in the environment surrounding the patient or on the surface of the body. Antiseptics - (anti- against; septicas - putrid). This is a group of medicines that are used to eliminate pathogens in the wound (skin, mucous membranes) in the gastrointestinal tract and ur ...
Bacteria
... • Occurs very quickly • Will stop reproducing only if: – Run out of food – Dry up – Poisoned by own wastes DRAW ON LEFT PAGE!!! ...
... • Occurs very quickly • Will stop reproducing only if: – Run out of food – Dry up – Poisoned by own wastes DRAW ON LEFT PAGE!!! ...
Document
... – Time required to kill 90% of microorganisms – Time required to reduce the population by a factor of 10 – Time required to reduce the population by one ...
... – Time required to kill 90% of microorganisms – Time required to reduce the population by a factor of 10 – Time required to reduce the population by one ...
Worked on Tobacco Mosaic Virus
... cases • 33% of all raw poultry tests + for Staphylococcus • 1 in every 200 eggs has Salmonella ...
... cases • 33% of all raw poultry tests + for Staphylococcus • 1 in every 200 eggs has Salmonella ...
VI. Cycles in the Environment
... convert ammonium in to more readily usable NO2- (nitrite) and NO3- (nitrate) 1. also what is in fertilizers d. Plants then pass N up the food web e. Process can also by-pass N fixing bacteria as lightning can produce ammonia as well ...
... convert ammonium in to more readily usable NO2- (nitrite) and NO3- (nitrate) 1. also what is in fertilizers d. Plants then pass N up the food web e. Process can also by-pass N fixing bacteria as lightning can produce ammonia as well ...
Guidance Note 6 Disinfection - University of Birmingham Intranet
... destruction of all forms of life, disinfection results in destruction of specific organisms. Microorganisms vary in their resistance to destruction by physical or chemical means. A disinfectant that destroys bacteria may be ineffective against viruses, fungi or prions. There are differences in susce ...
... destruction of all forms of life, disinfection results in destruction of specific organisms. Microorganisms vary in their resistance to destruction by physical or chemical means. A disinfectant that destroys bacteria may be ineffective against viruses, fungi or prions. There are differences in susce ...
Micro_History_16 - Kenston Local Schools
... Proved that anthrax is caused by bacteria Came up with Koch’s Postulates 1882 discovered the cause of TB = tuberculosis ...
... Proved that anthrax is caused by bacteria Came up with Koch’s Postulates 1882 discovered the cause of TB = tuberculosis ...
Module 2: The Healthcare Waste Management System
... o Direct contact (e.g., surgeon with infected wound in the finger performing a wound dressing) o Indirect contact (e.g., secretion from one patient transferred to another through hands in contact with contaminated waste) o Fecal-oral transmission via food ...
... o Direct contact (e.g., surgeon with infected wound in the finger performing a wound dressing) o Indirect contact (e.g., secretion from one patient transferred to another through hands in contact with contaminated waste) o Fecal-oral transmission via food ...
Bacteria PowerPoint - NGHS
... b. food spoilage and poisoning – caused by Salmonella and Staphylococcus ...
... b. food spoilage and poisoning – caused by Salmonella and Staphylococcus ...
KINGDOM MONERA Examples : bacteria, blue
... Refer to diagrams of bacteria in your textbook: Recognise the 3 shapes of bacteria coccus, bacillus and spirillus. Also take note that bacteria have no nuclear membrane. ♦ Cell wall is not made of the same chemical as plant cell walls. Monerans can be identified by whether their cell walls can be st ...
... Refer to diagrams of bacteria in your textbook: Recognise the 3 shapes of bacteria coccus, bacillus and spirillus. Also take note that bacteria have no nuclear membrane. ♦ Cell wall is not made of the same chemical as plant cell walls. Monerans can be identified by whether their cell walls can be st ...
Food Poisoning Research
... Name ___________________________ Period _________ Date _________________ ...
... Name ___________________________ Period _________ Date _________________ ...
Inhibition of adhesion of Neisseria meningitidis to host cells by
... a balance exists between these microorganisms. But occasionally, factors like antibiotics can disturb the balance and may lead to disease development. The use of live, beneficial microorganisms called probiotics to treat infectious disease and restore microbial disturbances are widely studied at pre ...
... a balance exists between these microorganisms. But occasionally, factors like antibiotics can disturb the balance and may lead to disease development. The use of live, beneficial microorganisms called probiotics to treat infectious disease and restore microbial disturbances are widely studied at pre ...
Antiseptics and disinfectants
... Antiseptic drugs are used in: • The treatment of skin infections • Prevention of infections in cuts and wounds • Cleaning the skin area of surgery from microorganisms • Profilaxy and treatment of infections in mucosal areas such as mouth, nose and vagina that are open to environment • As a scrub fo ...
... Antiseptic drugs are used in: • The treatment of skin infections • Prevention of infections in cuts and wounds • Cleaning the skin area of surgery from microorganisms • Profilaxy and treatment of infections in mucosal areas such as mouth, nose and vagina that are open to environment • As a scrub fo ...
SODIUM HYPOCHLORITE IN BLEACH IN SWIMMING POOLS IN
... is used to make bleach, which consists of around 3-8% sodium hypochlorite; sodium hydroxide is often also present to prevent the sodium hypochlorite decomposing. When it’s dissolved in water, hypochlorous acid (HOCl) is formed, a very strong oxidising agent that can react with and break down ...
... is used to make bleach, which consists of around 3-8% sodium hypochlorite; sodium hydroxide is often also present to prevent the sodium hypochlorite decomposing. When it’s dissolved in water, hypochlorous acid (HOCl) is formed, a very strong oxidising agent that can react with and break down ...
PowerPoint 簡報
... Empirical test of death: culture of Some bacteria undergo sporulation. cells on solid media. Viable but nonculturable cells Decline phase (the death phase) ...
... Empirical test of death: culture of Some bacteria undergo sporulation. cells on solid media. Viable but nonculturable cells Decline phase (the death phase) ...
Diseases - Ms. Alger
... • Sverdlovski (Soviet Union) in 1979 hundreds of people died when anthrax was accidently released. ...
... • Sverdlovski (Soviet Union) in 1979 hundreds of people died when anthrax was accidently released. ...
Disinfectant
Disinfectants are antimicrobial agents that are applied to non-living objects to destroy microorganisms that are living on the objects. Disinfection does not necessarily kill all microorganisms, especially resistant bacterial spores; it is less effective than sterilization, which is an extreme physical and/or chemical process that kills all types of life. Disinfectants are different from other antimicrobial agents such as antibiotics, which destroy microorganisms within the body, and antiseptics, which destroy microorganisms on living tissue. Disinfectants are also different from biocides — the latter are intended to destroy all forms of life, not just microorganisms.Disinfectants work by destroying the cell wall of microbes or interfering with the metabolism.Sanitizers are substances that simultaneously clean and disinfect. Disinfectants are frequently used in hospitals, dental surgeries, kitchens, and bathrooms to kill infectious organisms.Bacterial endospores are most resistant to disinfectants, but some viruses and bacteria also possess some tolerance.In wastewater treatment, a disinfection step with chlorine, ultra-violet (UV) radiation or ozonation can be included as tertiary treatment to remove pathogens from wastewater, for example if it is to be reused to irrigate golf courses. An alternative term used in the sanitation sector for disinfection of waste streams, sewage sludge or fecal sludge is sanitisation or sanitization.