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biology of prokaryotes
... _____ 2. A poison that is released from the outer membrane of dead Gram-negative bacteria is called a. a pathogen. c. an endotoxin. b. an exotoxin. d. a broad-spectrum toxin. _____ 3. Which of the following is not a way that bacteria cause disease in humans? a. destroying body tissues c. damaging bl ...
... _____ 2. A poison that is released from the outer membrane of dead Gram-negative bacteria is called a. a pathogen. c. an endotoxin. b. an exotoxin. d. a broad-spectrum toxin. _____ 3. Which of the following is not a way that bacteria cause disease in humans? a. destroying body tissues c. damaging bl ...
Study Guide
... _____ 2. A poison that is released from the outer membrane of dead Gram-negative bacteria is called a. a pathogen. c. an endotoxin. b. an exotoxin. d. a broad-spectrum toxin. _____ 3. Which of the following is not a way that bacteria cause disease in humans? a. destroying body tissues c. damaging bl ...
... _____ 2. A poison that is released from the outer membrane of dead Gram-negative bacteria is called a. a pathogen. c. an endotoxin. b. an exotoxin. d. a broad-spectrum toxin. _____ 3. Which of the following is not a way that bacteria cause disease in humans? a. destroying body tissues c. damaging bl ...
Bacteria - leavingcertbiology.net
... 5. Pressure (air pressure affects bacteria due to the cell wall not being strong enough to withstand high pressures) 6. Water (although some bacteria do not use water, others resort to endospore formation when there is not enough moisture) ...
... 5. Pressure (air pressure affects bacteria due to the cell wall not being strong enough to withstand high pressures) 6. Water (although some bacteria do not use water, others resort to endospore formation when there is not enough moisture) ...
Lecture 13-14 Dental plaque and caries
... •Bacteriocin production (oral streptococci, Corynebacterium ...
... •Bacteriocin production (oral streptococci, Corynebacterium ...
Chapter 16
... M.) Many prokaryotes can transfer genes, such as antibiotic resistance genes, within or between species ...
... M.) Many prokaryotes can transfer genes, such as antibiotic resistance genes, within or between species ...
What are antibiotics for?
... infections caused by bacteria. Bacteria are tiny organisms that can sometimes cause illness to humans and animals. The singular word for bacteria is bacterium. Such illnesses as tuberculosis, salmonella, syphilis and some forms of meningitis are caused by bacteria. Some bacteria are not harmful, whi ...
... infections caused by bacteria. Bacteria are tiny organisms that can sometimes cause illness to humans and animals. The singular word for bacteria is bacterium. Such illnesses as tuberculosis, salmonella, syphilis and some forms of meningitis are caused by bacteria. Some bacteria are not harmful, whi ...
Prokaryotes (bacteria) - Mrs. Ganske`s Science Classes
... without oxygen – Facultative – means able to function in different ways ...
... without oxygen – Facultative – means able to function in different ways ...
full text
... tetracyclines tested, minocycline appeared most active, both for removal of biofilm and for killing of sessile cells. Benzoyl peroxide alone had no effect on P. acnes biofilms but combined with high concentrations of erythromycin or clindamycin (which have only moderate to low activity against sessi ...
... tetracyclines tested, minocycline appeared most active, both for removal of biofilm and for killing of sessile cells. Benzoyl peroxide alone had no effect on P. acnes biofilms but combined with high concentrations of erythromycin or clindamycin (which have only moderate to low activity against sessi ...
Bacteria Webquest - Nutley Public Schools
... Please visit the following website: http://www.ucmp.berkeley.edu/bacteria/bacterialh.html 12. What are pathogenic bacteria? 13. What do aerobic bacteria require? 14. Where do anaerobic bacteria live and what can they cause? 15. How do facultative anaerobic bacteria differ from the other two? 16. Wha ...
... Please visit the following website: http://www.ucmp.berkeley.edu/bacteria/bacterialh.html 12. What are pathogenic bacteria? 13. What do aerobic bacteria require? 14. Where do anaerobic bacteria live and what can they cause? 15. How do facultative anaerobic bacteria differ from the other two? 16. Wha ...
Power Point Presentation
... Albumin- Protein manufactured by liver, helps fluid remain in the blood stream Phosphate Buffer- a salt or ester of phosphoric acid (a colorless liquid used in pharmaceuticals) that minimizes change in the acidity of a solution when an acid or base is added ...
... Albumin- Protein manufactured by liver, helps fluid remain in the blood stream Phosphate Buffer- a salt or ester of phosphoric acid (a colorless liquid used in pharmaceuticals) that minimizes change in the acidity of a solution when an acid or base is added ...
The Lyme Bacterium (Borrelia burgdorferi)
... scientific study found an average of 2,735 bacteria/tick 15 days after the tick had fed. Although the scientists found that recently molted nymphs had only 300 bacteria/nymph, within 75 days, these nymphs had an average of 61,275 bacteria! The tick serves as the vector for the bacteria, moving it fr ...
... scientific study found an average of 2,735 bacteria/tick 15 days after the tick had fed. Although the scientists found that recently molted nymphs had only 300 bacteria/nymph, within 75 days, these nymphs had an average of 61,275 bacteria! The tick serves as the vector for the bacteria, moving it fr ...
2016-2017 Bacteria Virtual Lab
... 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 environment. Nit ...
... 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 environment. Nit ...
View Full Text-PDF
... detected both phenotypically and genotypically. GNB constituted 68 (88.3%) of the total isolates, among them P. aeruginosa 26 (38.2%) were the most frequently isolated species. Gram-positive organisms constituted 4 (5.1%) of the total isolates and all (100%) of them were MDR. Multidrug resistance, e ...
... detected both phenotypically and genotypically. GNB constituted 68 (88.3%) of the total isolates, among them P. aeruginosa 26 (38.2%) were the most frequently isolated species. Gram-positive organisms constituted 4 (5.1%) of the total isolates and all (100%) of them were MDR. Multidrug resistance, e ...
Biology 261 Name __On_Scantron_Sheet
... A patient exhibits swollen, whitish skin lesions on the hands, feet and face. She also exhibits a loss of skin sensation due to nerve damage. Microscopic examination of a skin biopsy from an affected region revealed numerous acidfast, rod-shaped bacteria. However, the bacteria could not be grown in ...
... A patient exhibits swollen, whitish skin lesions on the hands, feet and face. She also exhibits a loss of skin sensation due to nerve damage. Microscopic examination of a skin biopsy from an affected region revealed numerous acidfast, rod-shaped bacteria. However, the bacteria could not be grown in ...
Chapter 7
... • kingdom bacteria are often found in extreme locations and divided into groups based on where they live or how they get energy – some live in salty, acidic, or very hot environments – one anaerobic group produces methane gas ...
... • kingdom bacteria are often found in extreme locations and divided into groups based on where they live or how they get energy – some live in salty, acidic, or very hot environments – one anaerobic group produces methane gas ...
Legionnaire’s Disease - Newcastle University
... As of yet there is no vaccination for legionnaire’s disease, however there are steps which can be taken which will radically reduce the chances of bacterial growth and infection. The bacteria can grow naturally in the wild but most cases of human infection tend to show the source of the bacteria be ...
... As of yet there is no vaccination for legionnaire’s disease, however there are steps which can be taken which will radically reduce the chances of bacterial growth and infection. The bacteria can grow naturally in the wild but most cases of human infection tend to show the source of the bacteria be ...
Eubacteria- Archaebacteria
... There are many bad bacteria in our environment that can do harm to our bodies. ...
... There are many bad bacteria in our environment that can do harm to our bodies. ...
Honors Biology - WordPress.com
... entire colony then feeds on the nutrients. They can be found in soil, are thin rod shaped, gram-negative cells that exhibit self-organizing behavior as a response to environmental cues. The swarm, which has been compared to a "wolfpack," modifies its environment through stigmergy. This behavior faci ...
... entire colony then feeds on the nutrients. They can be found in soil, are thin rod shaped, gram-negative cells that exhibit self-organizing behavior as a response to environmental cues. The swarm, which has been compared to a "wolfpack," modifies its environment through stigmergy. This behavior faci ...
Viruses & Bacteria
... interaction where all parties benefit. Examples are nitrogen fixing bacteria in the soil as well as the naturally occurring bacteria in our gut. ...
... interaction where all parties benefit. Examples are nitrogen fixing bacteria in the soil as well as the naturally occurring bacteria in our gut. ...
Integrative Microbiology – The Third Golden Age Reflections
... diagnoses and attempts at prevention and cure. Several vaccines used today stem from those developed by early microbiologists. Equally important, early research made it possible to understand the cycles of matter in nature, as well as providing a rational basis for food production and preservation. ...
... diagnoses and attempts at prevention and cure. Several vaccines used today stem from those developed by early microbiologists. Equally important, early research made it possible to understand the cycles of matter in nature, as well as providing a rational basis for food production and preservation. ...
General introduction to Microbiology Historical background and
... Defining Microbiology The study of organisms too small to be seen with the naked eye These organisms include viruses, bacteria, algae, fungi, and protozoa Microbiologists are concerned with characteristics and ...
... Defining Microbiology The study of organisms too small to be seen with the naked eye These organisms include viruses, bacteria, algae, fungi, and protozoa Microbiologists are concerned with characteristics and ...
Powerpoint - Lighthouse Christian Academy
... Recycle the nutrients in waste and dead organisms Make nitrogen available to plants and animals Produce vitamins K and B12 Break down pollutants and clean up toxic waste ...
... Recycle the nutrients in waste and dead organisms Make nitrogen available to plants and animals Produce vitamins K and B12 Break down pollutants and clean up toxic waste ...
Biofilm
![](https://commons.wikimedia.org/wiki/Special:FilePath/Staphylococcus_aureus_biofilm_01.jpg?width=300)
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.