The Human Digestive System
... The Human Digestive System 1. What is peristalsis? 2. The hepatic portal vein carries blood from the alimentary canal to the … 3. What are the products of fat digestion? 4. What is the role of bile in fat digestion? 5. State a role of beneficial bacteria in the alimentary canal 6. State two good sou ...
... The Human Digestive System 1. What is peristalsis? 2. The hepatic portal vein carries blood from the alimentary canal to the … 3. What are the products of fat digestion? 4. What is the role of bile in fat digestion? 5. State a role of beneficial bacteria in the alimentary canal 6. State two good sou ...
Poster
... 3.1.2 + 3.1.5 Lab Procedures when Handling Micro-organisms Micro-organisms • Can only be seen with the help of a microscope. • Include bacteria, some fungi (yeast) and some protists (plankton). • Occupy a wide range of habitats, e.g. salt water, fresh water, soil, dust, air, hot springs, etc. • Fung ...
... 3.1.2 + 3.1.5 Lab Procedures when Handling Micro-organisms Micro-organisms • Can only be seen with the help of a microscope. • Include bacteria, some fungi (yeast) and some protists (plankton). • Occupy a wide range of habitats, e.g. salt water, fresh water, soil, dust, air, hot springs, etc. • Fung ...
Prokaryotes
... Many prokaryotes have an extra layer, called a capsule, outside the cell wall. The capsule protects the cell from chemicals and drying out. It also allows the cell to stick to surfaces and to other cells. Because of this, many prokaryotes can form biofilms, like the one shown in Figure below. A biof ...
... Many prokaryotes have an extra layer, called a capsule, outside the cell wall. The capsule protects the cell from chemicals and drying out. It also allows the cell to stick to surfaces and to other cells. Because of this, many prokaryotes can form biofilms, like the one shown in Figure below. A biof ...
27. Minor Bacterial Pathogens
... respiratory therapy equipment and indwelling catheters. Sepsis, pneumonia, and urinary tract infections are the most frequent manifestations. Previous names for this organism include Herellea and Mima. ...
... respiratory therapy equipment and indwelling catheters. Sepsis, pneumonia, and urinary tract infections are the most frequent manifestations. Previous names for this organism include Herellea and Mima. ...
Scanning Electron Microscopy of the Gastrointestinal tract of Nile
... The morphology of the gastrointestinal tract of adult Nile perch was described using standard SEM procedures. Investigations revealed the presence of cardiform teeth in the oral cavity, goblet cells and finger print-like microridges on the hard palate and oesophagus lumenal surface. Elaborate patter ...
... The morphology of the gastrointestinal tract of adult Nile perch was described using standard SEM procedures. Investigations revealed the presence of cardiform teeth in the oral cavity, goblet cells and finger print-like microridges on the hard palate and oesophagus lumenal surface. Elaborate patter ...
CHAPTER 4 Lecture
... Lines open body cavities that are closed to the exterior of the body Serous membranes occur in pairs: ...
... Lines open body cavities that are closed to the exterior of the body Serous membranes occur in pairs: ...
Microbial Growth
... Describe the formation of biofilms and their potential for causing infection. Distinguish between chemically defined and complex media. Justify the use of each of the following: anaerobic techniques, living host cells, candle jars, selective, differential, and enrichment media. Define colony ...
... Describe the formation of biofilms and their potential for causing infection. Distinguish between chemically defined and complex media. Justify the use of each of the following: anaerobic techniques, living host cells, candle jars, selective, differential, and enrichment media. Define colony ...
Ch 6 Microbial Growth
... Explain the importance of osmotic pressure to microbial growth. Provide a use for each of the four elements (C, N, S, P) needed in large amounts for microbial growth. Explain how microbes are classified on the basis of O2 needs. Identify ways in which aerobes avoid damage by toxic forms of O ...
... Explain the importance of osmotic pressure to microbial growth. Provide a use for each of the four elements (C, N, S, P) needed in large amounts for microbial growth. Explain how microbes are classified on the basis of O2 needs. Identify ways in which aerobes avoid damage by toxic forms of O ...
18.4 Bacteria and Archaea
... Bacteria can evolve resistance to antibiotics. • Bacteria are gaining resistance to antibiotics. A bacterium carries – overuse genes for antibiotic resistance on a plasmid. – underuse – misuse A copy of the plasmid is through • Antibiotics must be transferred ...
... Bacteria can evolve resistance to antibiotics. • Bacteria are gaining resistance to antibiotics. A bacterium carries – overuse genes for antibiotic resistance on a plasmid. – underuse – misuse A copy of the plasmid is through • Antibiotics must be transferred ...
Lecture 1 ― INTRODUCTION INTO MICROBIOLOGY
... motility of the microorganisms). FIMBRIAE (PILI) Fimbriae are short, hair-like structures on the surfaces of bacteria. Like flagella, they are composed of protein (pilin). Fimbriae are very common in Gram-negative bacteria, but occur in some Gram-positive bacteria as well. Function: the major ...
... motility of the microorganisms). FIMBRIAE (PILI) Fimbriae are short, hair-like structures on the surfaces of bacteria. Like flagella, they are composed of protein (pilin). Fimbriae are very common in Gram-negative bacteria, but occur in some Gram-positive bacteria as well. Function: the major ...
Microorganisms Power Point
... Helpful Bacteria on/in our bodies It has been calculated that the normal human houses about 1012 bacteria on the skin, 1010 in the mouth, and 1014 in the gastrointestinal tract. This number is much greater than the number of our own cells in the human body. ...
... Helpful Bacteria on/in our bodies It has been calculated that the normal human houses about 1012 bacteria on the skin, 1010 in the mouth, and 1014 in the gastrointestinal tract. This number is much greater than the number of our own cells in the human body. ...
Factors affecting microbial growth in food
... the atmosphere or food environment. • Foods with low water activity placed at high humidity environment take up water, increase their water activity and get spoiled easily. • For example, dry grains stored in a environment with high humidity will take up water and undergo mold spoilage. ...
... the atmosphere or food environment. • Foods with low water activity placed at high humidity environment take up water, increase their water activity and get spoiled easily. • For example, dry grains stored in a environment with high humidity will take up water and undergo mold spoilage. ...
Growth and Cultivation of micro
... Balanced vs. Unbalanced growth • The growth of a bacterial culture is related to the composition of the medium. • In a minimal medium the growth is slower than in a complex medium. • If all the essential nutrients are freely available the growth is balanced, which means that all the building bocks ...
... Balanced vs. Unbalanced growth • The growth of a bacterial culture is related to the composition of the medium. • In a minimal medium the growth is slower than in a complex medium. • If all the essential nutrients are freely available the growth is balanced, which means that all the building bocks ...
Slide 1
... The motility of the non-sporing Gram-positive rods is an important attribute in 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 ...
... The motility of the non-sporing Gram-positive rods is an important attribute in 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 ...
File - Siegel Science
... Flagella: relatively long, usually only one or two per cell & they move like a wave from basic to tip; protists that move using flagella are called flagellates. ...
... Flagella: relatively long, usually only one or two per cell & they move like a wave from basic to tip; protists that move using flagella are called flagellates. ...
File - Microbiology
... Table 11.1 Relative resistance of bacterial endospors and vegetative cells ...
... Table 11.1 Relative resistance of bacterial endospors and vegetative cells ...
Listeriosis
... Prevention is the key to listeriosis. Prevent spoilage of any type of forage or silages – pH below 5.0, because the bacteria doesn’t strive in acidic environments. All sick animals should be isolated/removed from the healthy animals, and disposed of properly if death occurs. (Burn the carcass) ...
... Prevention is the key to listeriosis. Prevent spoilage of any type of forage or silages – pH below 5.0, because the bacteria doesn’t strive in acidic environments. All sick animals should be isolated/removed from the healthy animals, and disposed of properly if death occurs. (Burn the carcass) ...
Electric polarization properties of single bacteria measured with electrostatic force microscopy
... As it has been commented above Gram‐negative bacteria have a thinner cell wall than the Gram‐positive bacteria. Its envelope is composed by a cytoplasmic (or plasma) membrane and an outer membrane. Both define a periplasmic space between them. The cell wall is in the periplasm. ...
... As it has been commented above Gram‐negative bacteria have a thinner cell wall than the Gram‐positive bacteria. Its envelope is composed by a cytoplasmic (or plasma) membrane and an outer membrane. Both define a periplasmic space between them. The cell wall is in the periplasm. ...
Document
... iv. Adapted micro ecological habitat so it can exist in human without causing disease, yet successful pathogen because if the given the right circumstances or if it is found in the right part of the body, it can cause devastating diseases. v. Important pathogen in healthcare setting due to nosocomia ...
... iv. Adapted micro ecological habitat so it can exist in human without causing disease, yet successful pathogen because if the given the right circumstances or if it is found in the right part of the body, it can cause devastating diseases. v. Important pathogen in healthcare setting due to nosocomia ...
Equine Nutrition Sales Presentation
... manure. …..The mature horse's large intestine makes up more than half of the total volume of the digestive tract, is important for microbial digestion of food and is a major reservoir for water. ...
... manure. …..The mature horse's large intestine makes up more than half of the total volume of the digestive tract, is important for microbial digestion of food and is a major reservoir for water. ...
Leprosy
... and other chemicals.(McMurray, 1996) For example, some antibiotics are unable to penetrate the bacterium’s membrane making them very difficult to treat. Interestingly enough, the genus Myobacterium also encompasses tuberculosis and other commonly endemic diseases. In addition to the treatment diffic ...
... and other chemicals.(McMurray, 1996) For example, some antibiotics are unable to penetrate the bacterium’s membrane making them very difficult to treat. Interestingly enough, the genus Myobacterium also encompasses tuberculosis and other commonly endemic diseases. In addition to the treatment diffic ...
Ch3DIGESTION and ABSORPTION
... In response to sensory stimulation, your body primes its resources to better absorb and use anticipated nutrients EXAMPLE: Sound (Hearing a description of food) can cause the salivary glands to increase the flow of saliva Other examples? GASTROINTESTINAL TRACT The gastrointestinal (GI) tract is a mu ...
... In response to sensory stimulation, your body primes its resources to better absorb and use anticipated nutrients EXAMPLE: Sound (Hearing a description of food) can cause the salivary glands to increase the flow of saliva Other examples? GASTROINTESTINAL TRACT The gastrointestinal (GI) tract is a mu ...
Biology of Composting
... Microscopic decomposers are not solely responsible for the complex transition from organic “waste” to rich humus. Visible organisms of great variety transform organic matter by physical action such as chewing, sucking and grinding. Nematodes or roundworms are the most abundant invertebrates in the s ...
... Microscopic decomposers are not solely responsible for the complex transition from organic “waste” to rich humus. Visible organisms of great variety transform organic matter by physical action such as chewing, sucking and grinding. Nematodes or roundworms are the most abundant invertebrates in the s ...
Pseudomonas entomophila: A Versatile Bacterium with
... Several genes in the genome of P. entomophila have been associated with its entomopathogenicity. For example, the presence of genes that encode for TccC-type insecticidal toxin are particularly striking since they are only found in entomopathogenic bacteria such as Photorhabus luminescens and Xenorh ...
... Several genes in the genome of P. entomophila have been associated with its entomopathogenicity. For example, the presence of genes that encode for TccC-type insecticidal toxin are particularly striking since they are only found in entomopathogenic bacteria such as Photorhabus luminescens and Xenorh ...
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.