Microbiology Chapter 1
... 6. Microbial Antagonism Our normal microbial flora prevents potential pathogens from gaining access to our body ...
... 6. Microbial Antagonism Our normal microbial flora prevents potential pathogens from gaining access to our body ...
Microbes in the Environment
... Objectives • Use appropriate microbiology media, test systems, and lab equipment. • Describe the general properties and characteristics of bacteria – By doing this, students will be able to observe growth characteristics of bacteria ...
... Objectives • Use appropriate microbiology media, test systems, and lab equipment. • Describe the general properties and characteristics of bacteria – By doing this, students will be able to observe growth characteristics of bacteria ...
Chapter 1: The Microbial World and You
... stabilizing agent in many products including water-based paints and cosmetics. ...
... stabilizing agent in many products including water-based paints and cosmetics. ...
How are bacteria different from viruses?
... Describe a time in your life when you were really sick. Do you know if you had a virus or a bacterial infection (maybe it was something else!) What were the symptoms and how was it treated? ...
... Describe a time in your life when you were really sick. Do you know if you had a virus or a bacterial infection (maybe it was something else!) What were the symptoms and how was it treated? ...
Deaths and death rates for the 10 leading causes of death in
... 7. What is the mechanism for control gram-positive and gramnegative bacterial infection? 8. Briefly discuss the ways that bacteria influence the apoptosis of host cells. 9. How do yeast differ from molds and what does the term dimorphism mean when it is applied to fungi? 10. Why we have to study epi ...
... 7. What is the mechanism for control gram-positive and gramnegative bacterial infection? 8. Briefly discuss the ways that bacteria influence the apoptosis of host cells. 9. How do yeast differ from molds and what does the term dimorphism mean when it is applied to fungi? 10. Why we have to study epi ...
Penicillin
... it crowds out disease causing bacteria. E. coli also makes vitamin K which humans require to be healthy. • Although it is generally a good microbe, some strains make people sick. The toxic strains of this microbe are responsible for about half of all cases of traveler's diarrhea. One famous strain, ...
... it crowds out disease causing bacteria. E. coli also makes vitamin K which humans require to be healthy. • Although it is generally a good microbe, some strains make people sick. The toxic strains of this microbe are responsible for about half of all cases of traveler's diarrhea. One famous strain, ...
characterization of procaryotic cells inner structures in bacteria
... microscopes have the distinguish capability about 1 nm. It is so possible to study shapes and inner structures of microbes. The electron microscopes is also used for study of viruses. ...
... microscopes have the distinguish capability about 1 nm. It is so possible to study shapes and inner structures of microbes. The electron microscopes is also used for study of viruses. ...
Skin and Mucous Membranes
... the diagram on the left. These surfaces are normally inhabited by native bacteria which, in the healthy animal, do not cause disease. By competing with pathogenic (disease-causing) bacteria, these native organisms provide some protection to the animal. In the digestive system, a large and diverse po ...
... the diagram on the left. These surfaces are normally inhabited by native bacteria which, in the healthy animal, do not cause disease. By competing with pathogenic (disease-causing) bacteria, these native organisms provide some protection to the animal. In the digestive system, a large and diverse po ...
MICROBES Microbes - 2 basic types 1. Eukaryotes
... - can form endospores in unfavorable conditions - some have external structures such as: - capsules - cover the entire bacteria and protect from phagocytosis. - flagella - for movement - pili - for attaching to tissue cells - example: Neisseria gonorrhoeae attaches to cells of urinary tract - can’t ...
... - can form endospores in unfavorable conditions - some have external structures such as: - capsules - cover the entire bacteria and protect from phagocytosis. - flagella - for movement - pili - for attaching to tissue cells - example: Neisseria gonorrhoeae attaches to cells of urinary tract - can’t ...
Normal Microbiota: Locations and Predominant Microbes Normal
... Staphylococcus epidermidis, Micrococcus, Corynebacterium Staphylococcus epidermidis, Propionibacterium acnes Oral cavity Streptococcus mutans, Streptococcus sanguis Anaerobic bacteria (e.g., Actinomyces) Respiratory Tract S. epidermidis, Corynebacterium, Staphylococcus aureus Usually sterile Many (n ...
... Staphylococcus epidermidis, Micrococcus, Corynebacterium Staphylococcus epidermidis, Propionibacterium acnes Oral cavity Streptococcus mutans, Streptococcus sanguis Anaerobic bacteria (e.g., Actinomyces) Respiratory Tract S. epidermidis, Corynebacterium, Staphylococcus aureus Usually sterile Many (n ...
Pathogenesis of Bacterial Infections: Host, Parasite, Environmental
... Molecular phylogeny: tool that enables us to understand the complexity of life & recognize the relationships of living forms Determined by comparing difference in homologous genes encoding ribosomal RNA (16S r RNA genes from PROKARYOTIC cells & 18S rRNA from eukaryotic cells) Computer analysis of rR ...
... Molecular phylogeny: tool that enables us to understand the complexity of life & recognize the relationships of living forms Determined by comparing difference in homologous genes encoding ribosomal RNA (16S r RNA genes from PROKARYOTIC cells & 18S rRNA from eukaryotic cells) Computer analysis of rR ...
The Biotechnology Century and Its Workforce
... Chemotherapeutic agents used to treat infectious disease can be synthetic drugs or antibiotics Antibiotics are chemicals produced by bacteria and fungi that inhibit or kill other microbes ...
... Chemotherapeutic agents used to treat infectious disease can be synthetic drugs or antibiotics Antibiotics are chemicals produced by bacteria and fungi that inhibit or kill other microbes ...
iProtect Leaflet
... Bacteria, fungi and mildews are all present in our every day environment. These microscopic organisms have adapted to colonise and thrive in almost all places on earth. Residual levels of many bacterial strains are of no consequence to human health, in fact they can help build a general level of res ...
... Bacteria, fungi and mildews are all present in our every day environment. These microscopic organisms have adapted to colonise and thrive in almost all places on earth. Residual levels of many bacterial strains are of no consequence to human health, in fact they can help build a general level of res ...
1 Microbial Ecology Example of the Marine Carbon Cycle:
... Unlike in the environment you can manipulate the environment within the bottle. ...
... Unlike in the environment you can manipulate the environment within the bottle. ...
No Slide Title
... Early belief that some forms of life could arise from vital forces present in nonliving or decomposing matter. ...
... Early belief that some forms of life could arise from vital forces present in nonliving or decomposing matter. ...
4-Basic Bacteriology-Part-IV
... Normal flora of the urogenital tract (lower part): Kidneys, ureters, and bladder are usually sterile and harbor almost no normal flora Some skin normal flora can be found in the last pat of urethra. In adult females, the vagina harbors Lactobacilli, which plays an important role in preventing or in ...
... Normal flora of the urogenital tract (lower part): Kidneys, ureters, and bladder are usually sterile and harbor almost no normal flora Some skin normal flora can be found in the last pat of urethra. In adult females, the vagina harbors Lactobacilli, which plays an important role in preventing or in ...
The Wired Atlas of the Human Ecosystem | Wired Magazine | Wired
... With the advent of fast DNA sequencing, today’s microbiologists can delve deep into this weird inner universe, and they’re just as amazed as Van Leeuwenhoek was. It’s not just the sheer quantity of microbial cells (100 trillion or so for one person alone) but also their diversity: Each of us is home ...
... With the advent of fast DNA sequencing, today’s microbiologists can delve deep into this weird inner universe, and they’re just as amazed as Van Leeuwenhoek was. It’s not just the sheer quantity of microbial cells (100 trillion or so for one person alone) but also their diversity: Each of us is home ...
Microbe-Human Interactions: Infection and Disease
... a. In body only hours to months b. In same regions as resident flora c. Cannot persist in body 2. Resident microbiota a. Colonize body normally without causing disease b. Commensals; prevent overgrowth of pathogens c. Bacteria, fungi, protozoa, viruses, arthropods d. Some areas are microbe-free e. F ...
... a. In body only hours to months b. In same regions as resident flora c. Cannot persist in body 2. Resident microbiota a. Colonize body normally without causing disease b. Commensals; prevent overgrowth of pathogens c. Bacteria, fungi, protozoa, viruses, arthropods d. Some areas are microbe-free e. F ...
Human Microbe Interaction Notes
... 1) Competition with other organisms and repeated interaction with the environment play a role in this balance D) Some pathogens can be found in the normal flora but generally don’t cause problems because competition limits their growth 1) In a compromised state they can cause problems = opportunisti ...
... 1) Competition with other organisms and repeated interaction with the environment play a role in this balance D) Some pathogens can be found in the normal flora but generally don’t cause problems because competition limits their growth 1) In a compromised state they can cause problems = opportunisti ...
Microbial Interactions
... • two organisms overlap too much in their resource use, and one population is excluded ...
... • two organisms overlap too much in their resource use, and one population is excluded ...
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.