Microbiology
... 7. Other than being prokaryotic, state two ways in which a typical bacterial cell differs from a typical human cell (e.g. cell from cheek lining). 8. What are antibiotics? 9. Describe how some bacteria respond in order to survive when environmental conditions become unfavourable. 10. What is meant w ...
... 7. Other than being prokaryotic, state two ways in which a typical bacterial cell differs from a typical human cell (e.g. cell from cheek lining). 8. What are antibiotics? 9. Describe how some bacteria respond in order to survive when environmental conditions become unfavourable. 10. What is meant w ...
Vibrio cholerae - University of Louisville
... • Enters digestive tract through consumption of contaminated water or food – Contaminant usually the feces of a person infected by V. cholerae ...
... • Enters digestive tract through consumption of contaminated water or food – Contaminant usually the feces of a person infected by V. cholerae ...
Multicellular Parasites
... female worms live in the lymphatic vessels and deposit their offspring, tiny microfilaria, directly into the skin, lymphatics, or bloodstream, where they can be identified in biopsies or blood smears to make the diagnosis. The disorder these roundworms produce is termed filariasis, and it may be asy ...
... female worms live in the lymphatic vessels and deposit their offspring, tiny microfilaria, directly into the skin, lymphatics, or bloodstream, where they can be identified in biopsies or blood smears to make the diagnosis. The disorder these roundworms produce is termed filariasis, and it may be asy ...
(BTS 801) Quorum Sensing as a Potential Antimicrobial Target
... In the natural world most bacteria aggregate as biofilms - they form when bacteria adhere to surfaces in aqueous environments and begin to excrete a polysaccharide that can anchor them to all kinds of material. The biofilm is held together and protected by the polysaccharide matrix. This matrix prot ...
... In the natural world most bacteria aggregate as biofilms - they form when bacteria adhere to surfaces in aqueous environments and begin to excrete a polysaccharide that can anchor them to all kinds of material. The biofilm is held together and protected by the polysaccharide matrix. This matrix prot ...
Human Body Organization
... multicellular humans possible. Cells are specialized for maintaining parts of the internal environment. External functions: transport of nutrients and waste and maintenance of ion ...
... multicellular humans possible. Cells are specialized for maintaining parts of the internal environment. External functions: transport of nutrients and waste and maintenance of ion ...
Chapter 11: Bacteria Bacterial Groups
... F Genus Escherichia Escherichia:: E. coli is common inhabitant of human intestinal tract. Most strains are not pathogenic, but others can cause UTIs (urinary tract infections), traveler’s diarrhea, and foodfood-borne disease. ...
... F Genus Escherichia Escherichia:: E. coli is common inhabitant of human intestinal tract. Most strains are not pathogenic, but others can cause UTIs (urinary tract infections), traveler’s diarrhea, and foodfood-borne disease. ...
Glucose and cellulose digestion - ipm
... They are absorbed immediately in the small intestine without further chemical breakdown. Glucose, fructose and galactose are examples of commonly ingested monosaccharides. Glucose is absorbed in the intestinal villi via co-transport with sodium ions, it then enters the capillary blood for eventual t ...
... They are absorbed immediately in the small intestine without further chemical breakdown. Glucose, fructose and galactose are examples of commonly ingested monosaccharides. Glucose is absorbed in the intestinal villi via co-transport with sodium ions, it then enters the capillary blood for eventual t ...
Microbiology Lab Experiment Changes
... Work in groups (2-3 students). Each person in your group should do at least one plate. 1. Inoculate 2 or 3 different bacteria onto each kind of medium. ...
... Work in groups (2-3 students). Each person in your group should do at least one plate. 1. Inoculate 2 or 3 different bacteria onto each kind of medium. ...
mammaliandigestionII
... The distribution of microbial species varies with diet. Some of this appears to reflect substrate availability; for example, populations of cellulolytic bugs are depressed in animals fed diets rich in grain. Environmental conditions in the fermentation vat also can have profound effects on the micro ...
... The distribution of microbial species varies with diet. Some of this appears to reflect substrate availability; for example, populations of cellulolytic bugs are depressed in animals fed diets rich in grain. Environmental conditions in the fermentation vat also can have profound effects on the micro ...
PowerPoint
... • Diagnosis: tissue biopsy or sample, Gram-positive or acid-fast bacilli; culture supports definitive diagnosis (hold for weeks) • Treatment: 6 months trimethoprim/sulfamethoxazol; clinical success dictates whether other antibiotics may be used: amikacin, imipenem, meropenem, ceftriaxone, moxifloxac ...
... • Diagnosis: tissue biopsy or sample, Gram-positive or acid-fast bacilli; culture supports definitive diagnosis (hold for weeks) • Treatment: 6 months trimethoprim/sulfamethoxazol; clinical success dictates whether other antibiotics may be used: amikacin, imipenem, meropenem, ceftriaxone, moxifloxac ...
senior secondary examination, 2017 biology
... stahl in 1958. The experiment is as followes: (i) They grew E-coli in a medium containing 15NH4Cl as the only nitrogen source for many. generations. As a result N15 was incorporated into newly synthesised DNA. This heavy DNA molecule could be distinguished from the normal DNA by centrifugation in a ...
... stahl in 1958. The experiment is as followes: (i) They grew E-coli in a medium containing 15NH4Cl as the only nitrogen source for many. generations. As a result N15 was incorporated into newly synthesised DNA. This heavy DNA molecule could be distinguished from the normal DNA by centrifugation in a ...
Changes in the composition and diversity of the bacterial microbiota
... The resident microbiota of three oyster species (Crassostrea corteziensis, Crassostrea gigas and Crassostrea sikamea) was characterised using a high-throughput sequencing approach (pyrosequencing) that was based on the V3–V5 regions of the 16S rRNA gene. We analysed the changes in the bacterial comm ...
... The resident microbiota of three oyster species (Crassostrea corteziensis, Crassostrea gigas and Crassostrea sikamea) was characterised using a high-throughput sequencing approach (pyrosequencing) that was based on the V3–V5 regions of the 16S rRNA gene. We analysed the changes in the bacterial comm ...
Enrichment, selective and differential culture media
... Used for growth of only selected microorganisms. Selection by Adding antibiotics, prevents the growth of other cells y Lacking amino acids y May contain stains and color indicators (EMB) y ...
... Used for growth of only selected microorganisms. Selection by Adding antibiotics, prevents the growth of other cells y Lacking amino acids y May contain stains and color indicators (EMB) y ...
Microbiology associated with the vetiver plant.
... feeding readily on soluble resources and rather slowly on insoluble forms. Residues of younger plant with more soluble nutrient materials are more easily metabolized than branches of old tree with relatively higher woody tissue containing lignin. The nutritional composition of the substrate to be co ...
... feeding readily on soluble resources and rather slowly on insoluble forms. Residues of younger plant with more soluble nutrient materials are more easily metabolized than branches of old tree with relatively higher woody tissue containing lignin. The nutritional composition of the substrate to be co ...
IOSR Journal of Dental and Medical Sciences (IOSR-JDMS)
... bacteroides are the unavailable carbohydrates from the plant fibres and vegetable starches. These include cellulose, arabinogalactan, pectin, xylan, and vegetable starches such as amylose and amylopectin. 2.2. Prevotella Prevotella is the genus of gram negative bacteria. Arumugham et al. (2011) foun ...
... bacteroides are the unavailable carbohydrates from the plant fibres and vegetable starches. These include cellulose, arabinogalactan, pectin, xylan, and vegetable starches such as amylose and amylopectin. 2.2. Prevotella Prevotella is the genus of gram negative bacteria. Arumugham et al. (2011) foun ...
8th Seeon Conference and Science Camp
... To investigate, if the altered microbial composition of Casp8∆IEC mice drives intestinal inflammation, we performed faecal microbiota transplantation (FMT) experiments in which we reconstituted germ free wild type mice, with Casp8∆IEC and control microflora. Mice treated with Casp8∆IEC microflora sh ...
... To investigate, if the altered microbial composition of Casp8∆IEC mice drives intestinal inflammation, we performed faecal microbiota transplantation (FMT) experiments in which we reconstituted germ free wild type mice, with Casp8∆IEC and control microflora. Mice treated with Casp8∆IEC microflora sh ...
Meet the Prokaryotic Microbes PowerPoint Lecture
... ___________ microbe. Usually grown on chocolate blood agar because needs both hemin (factor X) and NAD (factor V)to grow. Encapsulated & Unencapsulted In 1930, two major categories of H. influenzae were defined: unencapsulated & encapsulated. Q: What does it mean for a bacterium to be encapsulated? ...
... ___________ microbe. Usually grown on chocolate blood agar because needs both hemin (factor X) and NAD (factor V)to grow. Encapsulated & Unencapsulted In 1930, two major categories of H. influenzae were defined: unencapsulated & encapsulated. Q: What does it mean for a bacterium to be encapsulated? ...
Food Microbiology. Course 8- INDUSTRIAL
... 1. Time allotted for the examination is 3 Hours 2. Answer all questions in part A. This contains 4 bunches of 4 objective type questions. For each bunch, Grade A will be awarded if all the four answers are correct, B for 3, C for 2, D for1, and E for 0. Answer any 5 questions from part B, any 4 from ...
... 1. Time allotted for the examination is 3 Hours 2. Answer all questions in part A. This contains 4 bunches of 4 objective type questions. For each bunch, Grade A will be awarded if all the four answers are correct, B for 3, C for 2, D for1, and E for 0. Answer any 5 questions from part B, any 4 from ...
Biofilms - Welcome to Cherokee High School
... E. faecalis biofilms on dental root canals, urethral catheters, uretheral stents ,and heart valves have been observed. While it is not clear that the ability of E. faecalis to form biofilms is essential for virulence, it appears that a majority of clinical isolates do possess the ability to form a b ...
... E. faecalis biofilms on dental root canals, urethral catheters, uretheral stents ,and heart valves have been observed. While it is not clear that the ability of E. faecalis to form biofilms is essential for virulence, it appears that a majority of clinical isolates do possess the ability to form a b ...
virulence factors
... Botulus – latin word for sausage (first known as sausage disease) C. botulinum does not grow in sausage today mainly due to nitrites added. Infant botulism 250 per yr., most associated with honey due to little microbial flora in G.I. ...
... Botulus – latin word for sausage (first known as sausage disease) C. botulinum does not grow in sausage today mainly due to nitrites added. Infant botulism 250 per yr., most associated with honey due to little microbial flora in G.I. ...
Micro Summer 2014 Take Home chapters 11 and 12
... it is the temperature that kills the microbes, not the pressure by itself. sterilization is achieved when steam condenses against the objects in the chamber and raises their temperatures. 39. (1)Using toilet bowl cleaner and nonionizing radiation to non-animate surfaces only removes or kills vegetat ...
... it is the temperature that kills the microbes, not the pressure by itself. sterilization is achieved when steam condenses against the objects in the chamber and raises their temperatures. 39. (1)Using toilet bowl cleaner and nonionizing radiation to non-animate surfaces only removes or kills vegetat ...
department of biology - Medgar Evers College
... Biology 403 is a one semester, 4 credit course that meets 3 hours per week for lecture and 3 hours per week for lab. The course is designed for Biology major students. The course will enable the students to learn about microorganisms, methods of their studies, mechanism of energy generation in diffe ...
... Biology 403 is a one semester, 4 credit course that meets 3 hours per week for lecture and 3 hours per week for lab. The course is designed for Biology major students. The course will enable the students to learn about microorganisms, methods of their studies, mechanism of energy generation in diffe ...
LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034
... 7. Influenza virus is an example of enveloped helical virus. 8. Phosphorus is most commonly found as apatite in rock sediments. 9. Denitrification is the release of ammonia from nitrate. 10. Streptomycin is commercially produced as hydrochlorides. III. Complete the following: (5x1=5) 11. The term ‘a ...
... 7. Influenza virus is an example of enveloped helical virus. 8. Phosphorus is most commonly found as apatite in rock sediments. 9. Denitrification is the release of ammonia from nitrate. 10. Streptomycin is commercially produced as hydrochlorides. III. Complete the following: (5x1=5) 11. The term ‘a ...
Human microbiota
The human microbiota is the aggregate of microorganisms, a microbiome that resides on the surface and in deep layers of skin (including in mammary glands), in the saliva and oral mucosa, in the conjunctiva, and in the gastrointestinal tracts. They include bacteria, fungi, and archaea. Micro-animals which live on the human body are excluded. The human microbiome refer to their genomes.One study indicated they outnumber human cells 10 to 1. Some of these organisms perform tasks that are useful for the human host. However, the majority have been too poorly researched for us to understand the role they play, however communities of microflora have been shown to change their behavior in diseased individuals. Those that are expected to be present, and that under normal circumstances do not cause disease, but instead participate in maintaining health, are deemed members of the normal flora. Though widely known as microflora, this is a misnomer in technical terms, since the word root flora pertains to plants, and biota refers to the total collection of organisms in a particular ecosystem. Recently, the more appropriate term microbiota is applied, though its use has not eclipsed the entrenched use and recognition of flora with regard to bacteria and other microorganisms. Both terms are being used in different literature.Studies in 2009 questioned whether the decline in biota (including microfauna) as a result of human intervention might impede human health.Most of the microbes associated with humans appear to be not harmful at all, but rather assist in maintaining processes necessary for a healthy body. A surprising finding was that at specific sites on the body, a different set of microbes may perform the same function for different people. For example, on the tongues of two people, two entirely different sets of organisms will break down sugars in the same way. This suggests that medical science may be forced to abandon the ""one only"" microbe model of infectious disease, and rather pay attention to functions of groups of microbes that have somehow gone awry.