Document
... of the contamination is most likely fecal contamination caused by run-off from a 600-acre dairy farm close to the stream. Heavy rains in the area caused localized flooding and the stream measured water levels well above normal. After isolating a species of bacteria from the water, the following labo ...
... of the contamination is most likely fecal contamination caused by run-off from a 600-acre dairy farm close to the stream. Heavy rains in the area caused localized flooding and the stream measured water levels well above normal. After isolating a species of bacteria from the water, the following labo ...
Lecture-6
... nutrients and build-up of toxins. At the same time, bacteria are constantly dying so the numbers actually remain constant. • Death phase: cell numbers decrease as growth stops and existing cells die off. The shape of the curve varies with temperature, nutrient supply, and other growth factors. This ...
... nutrients and build-up of toxins. At the same time, bacteria are constantly dying so the numbers actually remain constant. • Death phase: cell numbers decrease as growth stops and existing cells die off. The shape of the curve varies with temperature, nutrient supply, and other growth factors. This ...
Microbiology (BIO
... that the desired microorganism or group can use and its competitors can not SELECTIVE – selects for growth of certain microorganisms in a mixed population by using an ingredient that inhibits the growth of other microorganisms, but not the desired species or group DIFFERENTIAL – does not select for ...
... that the desired microorganism or group can use and its competitors can not SELECTIVE – selects for growth of certain microorganisms in a mixed population by using an ingredient that inhibits the growth of other microorganisms, but not the desired species or group DIFFERENTIAL – does not select for ...
Dr. Raj Ramakrishnan, Ph.D. Concept Questions Read the chapter
... 20. Which protozoan group is the most complex in structure and behavior? In life cycle? What characteristics set the sporozoa apart from the other protozoan groups? 21. Construct a chart that compares the four groups of eucaryotic microorganisms (fungi, algae, protozoa, helminths) in cellular struct ...
... 20. Which protozoan group is the most complex in structure and behavior? In life cycle? What characteristics set the sporozoa apart from the other protozoan groups? 21. Construct a chart that compares the four groups of eucaryotic microorganisms (fungi, algae, protozoa, helminths) in cellular struct ...
Spore Forming and Non-Spore Forming Gram
... intestinal cells by means of D-galactose residues on the bacterial surface which adhere to D-galactose receptors on susceptible intestinal cells The bacterium is taken up by induced phagocytosis, which is thought to be mediated by a membrane associated protein called internalin. Once ingested the ba ...
... intestinal cells by means of D-galactose residues on the bacterial surface which adhere to D-galactose receptors on susceptible intestinal cells The bacterium is taken up by induced phagocytosis, which is thought to be mediated by a membrane associated protein called internalin. Once ingested the ba ...
1495/Chapter 07
... found in nucleic acids, there are also some minor ones. These are usually slightly altered forms of the major bases. In many cases the minor bases serve as specific signals involved in programming or protecting genetic information. At this point, the results of Levene’s work led him to conclude inco ...
... found in nucleic acids, there are also some minor ones. These are usually slightly altered forms of the major bases. In many cases the minor bases serve as specific signals involved in programming or protecting genetic information. At this point, the results of Levene’s work led him to conclude inco ...
Molecular Microbial Ecology Symbiosis
... Background Millions of microbial species on Earth sustain nature’s element cycles or interact in (mostly) beneficial ways with macroorganisms; only few of these microbes are known to date. We use molecular methods to study the identity, function, and regulating factors of microbes in nature, with a ...
... Background Millions of microbial species on Earth sustain nature’s element cycles or interact in (mostly) beneficial ways with macroorganisms; only few of these microbes are known to date. We use molecular methods to study the identity, function, and regulating factors of microbes in nature, with a ...
Slide 1 - Cloudfront.net
... prokaryotes and explains how they differ. It also explains what factors are used to identify prokaryotes. ...
... prokaryotes and explains how they differ. It also explains what factors are used to identify prokaryotes. ...
Concept questions-lecture exam 1
... 20. Which protozoan group is the most complex in structure and behavior? In life cycle? What characteristics set the sporozoa apart from the other protozoan groups? 21. Construct a chart that compares the four groups of eucaryotic microorganisms (fungi, algae, protozoa, helminths) in cellular struct ...
... 20. Which protozoan group is the most complex in structure and behavior? In life cycle? What characteristics set the sporozoa apart from the other protozoan groups? 21. Construct a chart that compares the four groups of eucaryotic microorganisms (fungi, algae, protozoa, helminths) in cellular struct ...
About C Difficile 206KB - Lewisham and Greenwich NHS Trust
... The patient’s doctor will decide if treatment is necessary. All patients on antibiotics will have their treatment reviewed and may be prescribed specific antibiotics that kill C.diff. In addition, some patients are prescribed probiotics e.g. yoghurts which consist of good bacteria to rebalance bacte ...
... The patient’s doctor will decide if treatment is necessary. All patients on antibiotics will have their treatment reviewed and may be prescribed specific antibiotics that kill C.diff. In addition, some patients are prescribed probiotics e.g. yoghurts which consist of good bacteria to rebalance bacte ...
Culture Media Culture media
... preparation can also be made into slant (slop culture or stab culture). - allow separate colony formation. - colonial morphology. - quantitation. ...
... preparation can also be made into slant (slop culture or stab culture). - allow separate colony formation. - colonial morphology. - quantitation. ...
List the major taxonomic categories from the most to least inclusive
... provides sugar from photosynthesis. Nitrogen compounds are also provided if the algae is nitrogen-fixing. The fungus provides water and protection from ultraviolet radiation. Some fungi produce pigments that shield algae from ultraviolet radiation or excess light, or toxic substances that discourage ...
... provides sugar from photosynthesis. Nitrogen compounds are also provided if the algae is nitrogen-fixing. The fungus provides water and protection from ultraviolet radiation. Some fungi produce pigments that shield algae from ultraviolet radiation or excess light, or toxic substances that discourage ...
Degree project in Biology
... Fluoroquinolones are antimicrobial drugs that prevent the replication of the bacterial chromosome. Fluoroquinolones interact with their target molecules, DNA gyrase and topoisomerase IV, enzymes that are essential in the replication. When a fluoroquinolone binds toone of these enzymes it cannot func ...
... Fluoroquinolones are antimicrobial drugs that prevent the replication of the bacterial chromosome. Fluoroquinolones interact with their target molecules, DNA gyrase and topoisomerase IV, enzymes that are essential in the replication. When a fluoroquinolone binds toone of these enzymes it cannot func ...
Food Hygiene Quiz - i
... A. Teenagers, elderly people and young children B. Babies, young children and teenagers C. Pregnant women, young children and elderly ...
... A. Teenagers, elderly people and young children B. Babies, young children and teenagers C. Pregnant women, young children and elderly ...
MICRB 106: Microbial Diversity Assignment
... harvest is related to man; and why is there a commercial interest in this archaea? 3. What are some unique properties of hyperthermophiles? Where in the ocean are members of this archea group found and what ecological role do they play there? 4. What is physiologically unique about archaea like Meth ...
... harvest is related to man; and why is there a commercial interest in this archaea? 3. What are some unique properties of hyperthermophiles? Where in the ocean are members of this archea group found and what ecological role do they play there? 4. What is physiologically unique about archaea like Meth ...
Power Point presentation
... When washing cutting boards, one should scrub off any food stuck on them and wash them with hot, soapy water. Make sure you rinse the boards well. Wet or damp cutting boards should never be stored because these are feeding grounds for possible bacteria. ...
... When washing cutting boards, one should scrub off any food stuck on them and wash them with hot, soapy water. Make sure you rinse the boards well. Wet or damp cutting boards should never be stored because these are feeding grounds for possible bacteria. ...
Wet Mount Proficiency Test 2003 A
... [ ] [ ] [°] Yeast cell(s) with bud/s & without There is lots to look at in this micrograph. It was taken with phase contrast to make the details stand out more clearly. The large squamous epithelial cell (item 1) is not a clue cell; too much normal cellular detail and no covering of bacterial cells. ...
... [ ] [ ] [°] Yeast cell(s) with bud/s & without There is lots to look at in this micrograph. It was taken with phase contrast to make the details stand out more clearly. The large squamous epithelial cell (item 1) is not a clue cell; too much normal cellular detail and no covering of bacterial cells. ...
Mesosomes of Bacillus Species, Seen by Negative Staining
... thickness of bacteria perpendicular to the supporting film was about half the width seen. Further, the heavy metal stain will have dried around the bacterium, and within any surface pockets. The stain does not appear to have penetrated the plasma membrane, but has gone through the wall and into many ...
... thickness of bacteria perpendicular to the supporting film was about half the width seen. Further, the heavy metal stain will have dried around the bacterium, and within any surface pockets. The stain does not appear to have penetrated the plasma membrane, but has gone through the wall and into many ...
General Microbiology
... Since bacterial organisms are so minute, it is impossible to view the organisms without compound microscope. In order to imagine the cellular components and to differentiate bacteria from other microbial agents, staining techniques are used by scientists to categorize different bacteria. There are t ...
... Since bacterial organisms are so minute, it is impossible to view the organisms without compound microscope. In order to imagine the cellular components and to differentiate bacteria from other microbial agents, staining techniques are used by scientists to categorize different bacteria. There are t ...
The isolation of heavy-metal resistant culturable
... low occurrence of α- and β-Proteobacteria, and the absence of δ-Proteobacteria are common phenomena in plated communities, probably because the members of these groups are generally slow-growing (Mitsui et al. 1997), or may have specific physiological requirements and therefore may have been lost dur ...
... low occurrence of α- and β-Proteobacteria, and the absence of δ-Proteobacteria are common phenomena in plated communities, probably because the members of these groups are generally slow-growing (Mitsui et al. 1997), or may have specific physiological requirements and therefore may have been lost dur ...
Gram-negative bacteria
... Antibiotics affect bacteria with certain cellular activities – Penicillin: blocks the ability to build new cell wall material – Tetracycline: blocks protein synthesis ...
... Antibiotics affect bacteria with certain cellular activities – Penicillin: blocks the ability to build new cell wall material – Tetracycline: blocks protein synthesis ...
