Sept2_Lecture3
... In World War I, de-lousing stations were established for troops on the Western front but the disease ravaged the armies of the Eastern front, with over 150,000 dying in Serbia alone. Fatalities were generally between 10 to 40 percent of those infected, and the disease was a major cause of death for ...
... In World War I, de-lousing stations were established for troops on the Western front but the disease ravaged the armies of the Eastern front, with over 150,000 dying in Serbia alone. Fatalities were generally between 10 to 40 percent of those infected, and the disease was a major cause of death for ...
Which is the most effective antibiotic: Student Worksheet
... may have already been done for you. If not, follow the instructions in the section ‘Pouring agar plates’ in Practical 4.3 Edexcel AS Biology. Label the Petri dish on the base at the edge with your name, the date and the type of bacterium it is inoculated with. 3 Flame the forceps and then use them ...
... may have already been done for you. If not, follow the instructions in the section ‘Pouring agar plates’ in Practical 4.3 Edexcel AS Biology. Label the Petri dish on the base at the edge with your name, the date and the type of bacterium it is inoculated with. 3 Flame the forceps and then use them ...
INFECTION AND INFECTIOUS PROCESS
... which fail to multiply on living tissue and so are not important in infectious disease. • Parasites: They are organisms that can establish themselves and multiply in hosts. They may be pathogens or commensal. Pathogens are those which are capable of producing disease in a host. On the contrary comme ...
... which fail to multiply on living tissue and so are not important in infectious disease. • Parasites: They are organisms that can establish themselves and multiply in hosts. They may be pathogens or commensal. Pathogens are those which are capable of producing disease in a host. On the contrary comme ...
Bacteria… - wlhs.wlwv.k12.or.us
... from Viruses? Bacteria are different from viruses in that they: -are much bigger -have a different structure (made of cells) therefore are considered “LIVING” -can reproduce (unlike viruses, which require a ...
... from Viruses? Bacteria are different from viruses in that they: -are much bigger -have a different structure (made of cells) therefore are considered “LIVING” -can reproduce (unlike viruses, which require a ...
Diseases Caused by Bacteria and Viruses
... A disease-causing particle that contains only protein and not DNA or RNA is called a(an)_____. ...
... A disease-causing particle that contains only protein and not DNA or RNA is called a(an)_____. ...
PGS: 534 – 540
... 4. Scientists perform a Gram staining for easy, fast identification of most bacteria. (Fig. 27.3) a. Gram + (stain blue) (They possess a THICK peptidoglycan layer.) b. Gram - (stain Red) (These posses a THIN peptidoglycan layer BETWEEN phospholipids layers.) c. Gram- are more dangerous to humans and ...
... 4. Scientists perform a Gram staining for easy, fast identification of most bacteria. (Fig. 27.3) a. Gram + (stain blue) (They possess a THICK peptidoglycan layer.) b. Gram - (stain Red) (These posses a THIN peptidoglycan layer BETWEEN phospholipids layers.) c. Gram- are more dangerous to humans and ...
The Antimicrobial Effect of Metal
... bonded to titanium alloys on surgical implants in order to prevent post-operative infections. ...
... bonded to titanium alloys on surgical implants in order to prevent post-operative infections. ...
Microbial Metabolism
... Catabolic Products and Biochemical Testing a. Carbohydrate Fermentation Tests Medium: Carbohydrate fermentation broth with a Durham tube (a small inverted vial filled with the ...
... Catabolic Products and Biochemical Testing a. Carbohydrate Fermentation Tests Medium: Carbohydrate fermentation broth with a Durham tube (a small inverted vial filled with the ...
Chapter 18 Bacteria Notes
... everywhere. They are the oldest life forms on Earth. E. coli is the most studied bacterium. All bacteria are prokaryotic meaning they have no true nucleus (they do still have genetic material). Bacteria do contain cell walls containing acids & sugars that provide support as well as a cell membrane i ...
... everywhere. They are the oldest life forms on Earth. E. coli is the most studied bacterium. All bacteria are prokaryotic meaning they have no true nucleus (they do still have genetic material). Bacteria do contain cell walls containing acids & sugars that provide support as well as a cell membrane i ...
© U n
... disinfectant that could be used in most fields including water distribution systems and industries for biofilm control, hospitals for minimising cross infection, food industries for increasing quality and shelf life of food and also in households for washing hands. ...
... disinfectant that could be used in most fields including water distribution systems and industries for biofilm control, hospitals for minimising cross infection, food industries for increasing quality and shelf life of food and also in households for washing hands. ...
... tract. Corticosteroids inhibit this proinflammatory response. It is suggested that the inflammatory process is similar to the stimulatory effect of cytokines released from inflammatory cells during infection. Bacterial products, including endotoxin, were shown to stimulate the response, although the ...
1 INTRODUCTION I Bacterial Morphology and Classification
... cytoplasm. Listeria, Brucella, Mycobacteria, Salmonella all demonstrate this ability. b. Obligate intracellular organisms must gain access to the host cell intracellular space to survive and multiply (ie. Chlamydiales and Rickettsiales). 6. Virulence: The degree of pathogenicity of a microorganism a ...
... cytoplasm. Listeria, Brucella, Mycobacteria, Salmonella all demonstrate this ability. b. Obligate intracellular organisms must gain access to the host cell intracellular space to survive and multiply (ie. Chlamydiales and Rickettsiales). 6. Virulence: The degree of pathogenicity of a microorganism a ...
No Slide Title
... M. Parasite - any organism that lives upon or within another organism at whose expense it gains some advantage. N. Virus - Latin term for “poison” refers to a non-living infectious agent. Contains either DNA or RNA, never both! Obligate Intracellular Molecular Parasites ...
... M. Parasite - any organism that lives upon or within another organism at whose expense it gains some advantage. N. Virus - Latin term for “poison” refers to a non-living infectious agent. Contains either DNA or RNA, never both! Obligate Intracellular Molecular Parasites ...
Screening resistant gram positif bacteria from meat products
... E.coli that were isolated from meat based food from Libanon by Harakeh et. al. (2005). This antibiotics susceptible in treatment normally gram-negative bacteria including Pseudomons, Proteus, and Serratia and gram positive Staphylococcus. F/M also know as nitrofurantoin, this antibotics works by dam ...
... E.coli that were isolated from meat based food from Libanon by Harakeh et. al. (2005). This antibiotics susceptible in treatment normally gram-negative bacteria including Pseudomons, Proteus, and Serratia and gram positive Staphylococcus. F/M also know as nitrofurantoin, this antibotics works by dam ...
Faecal Bacteria
... Present in high numbers. Specific to faecal material. Identified by simple consistent tests. non-pathogenic. Behave in a similar way to pathogens in the environment. Survival rate same or better than pathogens. As resistant or more resistant than pathogens to disinfection. ...
... Present in high numbers. Specific to faecal material. Identified by simple consistent tests. non-pathogenic. Behave in a similar way to pathogens in the environment. Survival rate same or better than pathogens. As resistant or more resistant than pathogens to disinfection. ...
Motilities Swimming, Swarming, and Twitching Adherent Phenotypic
... variety of other phenotypic traits, including increased production of pyocyanin and pyoverdine and reduced elastase activity. Under appropriate growth conditions, cells of each phenotype switched to the other phenotype at a fairly high frequency. We conclude that these S variants resulted from phase ...
... variety of other phenotypic traits, including increased production of pyocyanin and pyoverdine and reduced elastase activity. Under appropriate growth conditions, cells of each phenotype switched to the other phenotype at a fairly high frequency. We conclude that these S variants resulted from phase ...
Chapter 19
... – ex: Clostridium botulinum • grow in canned food that has not been properly sterilized ...
... – ex: Clostridium botulinum • grow in canned food that has not been properly sterilized ...
DR10.1a Bacteria and Archaea
... 14. What are the four steps of reproduction by binary fission? _______________________________________________________________ _______________________________________________________________ Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are ...
... 14. What are the four steps of reproduction by binary fission? _______________________________________________________________ _______________________________________________________________ Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are ...
Bacteria
... • Binary fission – a form of asexual reproduction in bacteria that results in cell division • DNA is replicated • Cell increases in size, splits in two • Plasma membrane pinches together and a new cell plate forms • Control of the bacterial cell cycle: growth rates, biochemical signals, and environm ...
... • Binary fission – a form of asexual reproduction in bacteria that results in cell division • DNA is replicated • Cell increases in size, splits in two • Plasma membrane pinches together and a new cell plate forms • Control of the bacterial cell cycle: growth rates, biochemical signals, and environm ...
Bacteria Virtual Lab Procedure Analysis
... colony can be seen with the naked eye. The specific shape and color of a bacterial colony can be used to identify the species of bacteria that form it. Bacteria are important in many ways. Some bacteria break down organic materials from dead organisms and wastes, returning nutrients to the environme ...
... colony can be seen with the naked eye. The specific shape and color of a bacterial colony can be used to identify the species of bacteria that form it. Bacteria are important in many ways. Some bacteria break down organic materials from dead organisms and wastes, returning nutrients to the environme ...
sheet 15 hashem abosafi
... do a test called Schick test which is a skin test where we inject the toxin, if redness happened then the person is not immune, if no reaction happened then he/she is immune ...
... do a test called Schick test which is a skin test where we inject the toxin, if redness happened then the person is not immune, if no reaction happened then he/she is immune ...
3. Bacterial biovolumes and carbon
... [methyl-3H]thymidine at ±1°C in situ temperature at atmospheric pressure. A total of five 160 ml subsamples were retrieved from the incubation bottle every 6 hours from 0 to 24 hours. Linearity of incorporation. The incorporation rate into cold-TCA precipitate was always linear over the 24h incubati ...
... [methyl-3H]thymidine at ±1°C in situ temperature at atmospheric pressure. A total of five 160 ml subsamples were retrieved from the incubation bottle every 6 hours from 0 to 24 hours. Linearity of incorporation. The incorporation rate into cold-TCA precipitate was always linear over the 24h incubati ...
Shapes of Bacteria
... Directions: Use the classification key to identify and name the bacteria pictured below and then answer the questions on the back. Be sure to follow the rules for writing scientific names (the line provided DOES NOT count as an underline for the name—you must underline them). The genus name describe ...
... Directions: Use the classification key to identify and name the bacteria pictured below and then answer the questions on the back. Be sure to follow the rules for writing scientific names (the line provided DOES NOT count as an underline for the name—you must underline them). The genus name describe ...
Biofilm
A biofilm is any group of microorganisms in which cells stick to each other on a surface. These adherent cells are frequently embedded within a self-produced matrix of extracellular polymeric substance (EPS). Biofilm extracellular polymeric substance, which is also referred to as slime (although not everything described as slime is a biofilm), is a polymeric conglomeration generally composed of extracellular DNA, proteins, and polysaccharides. Biofilms may form on living or non-living surfaces and can be prevalent in natural, industrial and hospital settings. The microbial cells growing in a biofilm are physiologically distinct from planktonic cells of the same organism, which, by contrast, are single-cells that may float or swim in a liquid medium.Microbes form a biofilm in response to many factors, which may include cellular recognition of specific or non-specific attachment sites on a surface, nutritional cues, or in some cases, by exposure of planktonic cells to sub-inhibitory concentrations of antibiotics. When a cell switches to the biofilm mode of growth, it undergoes a phenotypic shift in behavior in which large suites of genes are differentially regulated.