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bacteria The single-celled organisms called bacteria live on, in, and
bacteria The single-celled organisms called bacteria live on, in, and

... food in their immediate environment into soluble form so that it can pass through the wall and into the cytoplasm (see enzyme). Some bacteria can live on simple mineral compounds. Others have very complex food requirements. Autotrophic bacteria can manufacture organic nutrients—compounds such as car ...
Quiz #7 - San Diego Mesa College
Quiz #7 - San Diego Mesa College

... Q. 6: Which of the following is/are TRUE of members of the genus Pseudomonas? A) they are strictly anaerobic soil bacteria B) they are able to decompose a wide variety of organic compounds. C) they can become serious obligate intracellular parasites. D) they are known to form cysts when starved for ...
Gram Stain Lab Prokaryotic Cell Wall Differentiation
Gram Stain Lab Prokaryotic Cell Wall Differentiation

... Prokaryotic Cell Wall Differentiation Honors BioMed 1 Redwood High School Name: ...
Salivary Buffers and Coagulation Factors
Salivary Buffers and Coagulation Factors

... D- Microbial Mechanisms of Host Tissue Damage: - Some bacterial products inhibit the growth or alter the metabolism of host tissue cells; these include 1- A number of metabolic by-products such as ammonia; volatile sulfur compounds; and fatty acids, peptides, and indole. ...
18 Bacteria and Viruses
18 Bacteria and Viruses

... take in nutrients. As shown in the figure on the next page, many heterotrophic bacteria are saprotrophs. They obtain nutrients by decomposing organic materials associated with dead organisms or organic waste. 7. Compare What is the main difference between heterotrophs and autotrophs? ...
Fatty acids
Fatty acids

... COOH COOH COOH COOH COOH ...
ANTIMICROBIALS 1
ANTIMICROBIALS 1

... ◦ When resistant bacteria are able to survive after being exposed to a drug and the bacteria are able to replicate, a problem of a drug-resistant colony arises. ◦ Once resistant, a bacterium will pass on its resistance to its offspring ...
Microbiology bio 123
Microbiology bio 123

... e. Has been recognized as a major problem in the last few years and may now be the most common bacteria in food 3. Clostridium perfringens a. Common source is foods that are being kept warm for a long period of time b. Initial cooking does not kill the spores and when the temperature is decreased th ...
Staining Reactions of Micro-Organisms
Staining Reactions of Micro-Organisms

... another color after a decolorization step is used) is safranin. There are many techniques for this method. Indeed it is one of the simpler, faster, but most under-utilized diagnostic stain method around. As long as the Gram's iodine is left on the sample for as long as the crystal violet was, this t ...
Monera/Bacteria
Monera/Bacteria

... Bacteria adapting to new environment and making enzymes to digest the substrate (agar), little if any increase in bacteria numbers. 2. Log phase: Bacteria reproducing rapidly due to ideal conditions of food, moisture, space, oxygen. 3. Stationary phase: No increase in bacterial numbers, production o ...
CHAPTER 34: BACTERIA
CHAPTER 34: BACTERIA

... and do not have any membrane-bound organelles. Internally, they have a complex membrane system formed from invaginations of the plasma membrane. Photosynthetic and/or respiratory enzymes may be associated with these membranes. Like eukaryotes, they have ribosomes, but they are distinctly different i ...
Parts Washing Using ChemFree Bioremediation Technology
Parts Washing Using ChemFree Bioremediation Technology

... saving $1,800 in disposal costs – Solution can be used indefinitely with only occasional replenishment – Safe to use, does not require personal protective equipment ...
Section 2: Energy Flow in Ecosystems
Section 2: Energy Flow in Ecosystems

... • What are three important roles of bacteria and viruses? • What are the steps described in Koch’s postulates? • What are two ways that bacteria cause disease? • How does antibiotic resistance develop? ...
Antibiotics and Ribosomes as Drug Targets
Antibiotics and Ribosomes as Drug Targets

... kill (bactericidal) or inhibit growth (bacteriostatic) of bacteria (or other microorganisms) • Antibiotics may be classified in several ways. Most common classification schemes are based on chemical structure of the antibiotic ...
Clavamox or Augmentin - Mar Vista Animal Medical Center
Clavamox or Augmentin - Mar Vista Animal Medical Center

... oral dose is 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 pos ...
primary and secondary metabolites in fungi File
primary and secondary metabolites in fungi File

... Are those that are essential for growth to occur. proteins ...
Antibiotic overuse: Stop the killing of beneficial bacteria
Antibiotic overuse: Stop the killing of beneficial bacteria

... Other, equally serious, long-term consequences of our love of antibiotics have received far less attention. Antibiotics kill the bacteria we do want, as well as those we don't. Early evidence from my lab and others hints that, sometimes, our friendly flora never fully recover. These long-term change ...
Chapter 21 - Bakersfield College
Chapter 21 - Bakersfield College

... COOH COOH COOH COOH COOH ...
Slide 1
Slide 1

... distinguishing coryneform bacteria and lactobacilli from listeria. Listeria monocytogenes is an important human pathogen, and it is capable of a characteristic tumbling motility seen at 25 degrees C but not at 37 degrees C. Lactobacilli appear microscopically as long, slender rods that often grow in ...
Anaerobic Jar
Anaerobic Jar

... • Microaerophilic bacteria Require oxygen in reduced quantity (2-10%) • Facultative bacteria Grow either with or without oxygen • Anaerobic bacteria Both obligate and aerotolerant (Aerotolerant do not use aerobic metabolism but have some enzymes that detoxify toxic forms of oxygen) ...
Lab6-Antimicrobial
Lab6-Antimicrobial

...  Static in action : they inhibit microbial growth long enough for the body's own defenses to remove the organisms. Antimicrobial agents also vary in their spectrum:  Broad spectrum : Drugs which are effective against a variety of both gram-positive and gram-negative bacteria. ...
Short Exam Questions
Short Exam Questions

... 54. Name any two of the main bacterial types (shapes). 55. By which method do bacterial cells reproduce? 56. Some bacteria are anaerobic. What does this mean? 57. What are pathogenic bacteria? 58. Give two example of the economic importance of bacteria. 59. Explain how Rhizopus gets its food. 60. Wh ...
Microbial Control of Root-Pathogenic Fungi and Oomycetes
Microbial Control of Root-Pathogenic Fungi and Oomycetes

... and regions where root hairs and lateral roots emerge. Exudates from these sites are a dominant source of nutrients for rhizobacteria, and there is increasing evidence that the sugars, organic and amino acids, phenolics, and other signal molecules in exudates maintain a complex chemical dialog betwe ...
PPT - Larry Smarr
PPT - Larry Smarr

... by the Gordon and Betty Moore Foundation. The CAMERA computational and storage cluster, which contains multiple ocean microbial metagenomic datasets, as well as the full genomes of ~166 marine microbes, is actively in use. End users can access the metagenomic data either via the web or over novel de ...
Food Fermentation
Food Fermentation

... Perishable foods that were transformed into safe, longer lasting products by the action of fermenting microorganisms immediately became important components of human diets. Be it sauerkraut in the west and kimchi in the east, or cheese, yoghurt, tempeh from cows milk in the west and goat and camel m ...
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Phospholipid-derived fatty acids



Phospholipid-derived fatty acids (PLFA) are widely used in microbial ecology as chemotaxonomic markers of bacteria and other organisms. Phospholipids are the primary lipids composing cellular membranes. Phospholipids can be saponified, which releases the fatty acids contained in their diglyceride tail. Once the phospholipids of an unknown sample are saponified, the composition of the resulting PLFA can be compared to the PLFA of known organisms to determine the identity of the sample organism. PLFA analysis may be combined with other techniques, such as stable isotope probing to determine which microbes are metabolically active in a sample. PLFA analysis was pioneered by D.C. White, MD, PhD, at the University of Tennessee, in the early to mid 1980s.
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