lecture notes
... Intracellular parasites much smaller than bacteria (most are not visible with light microscope). ...
... Intracellular parasites much smaller than bacteria (most are not visible with light microscope). ...
Prokaryotic Cells
... Several additional proteins are present in the isolated hook-basal body complex. These are possibly involved in export and assembly of various flagella components. The basal bodies of some gram negatives with polar flagella have one or two additional large discs, 80-170 nm in diameter, associated wi ...
... Several additional proteins are present in the isolated hook-basal body complex. These are possibly involved in export and assembly of various flagella components. The basal bodies of some gram negatives with polar flagella have one or two additional large discs, 80-170 nm in diameter, associated wi ...
Chapter2 Bacterial Physiology
... Nutritional types of bacteria • Autotroph reduced inorganic molecules ...
... Nutritional types of bacteria • Autotroph reduced inorganic molecules ...
Slides
... – Red flourescing PS beads (Ø 10 µm F‐8834, Molecular Probes, Eugene, OR) – Concentrated in mo/lity medium and added to leading edge of swarm on plate – Pipehed into 1 ml mo/lity medium on slide with grease ring – 40x phase contrast dry objec/ve and fluorescence (Texas Red cube No. ...
... – Red flourescing PS beads (Ø 10 µm F‐8834, Molecular Probes, Eugene, OR) – Concentrated in mo/lity medium and added to leading edge of swarm on plate – Pipehed into 1 ml mo/lity medium on slide with grease ring – 40x phase contrast dry objec/ve and fluorescence (Texas Red cube No. ...
2-Morphology-of-bacteria
... With Gram stain bacteria can be divided into two categories; Gram positive bacteria that retain the methyl violet-iodine ...
... With Gram stain bacteria can be divided into two categories; Gram positive bacteria that retain the methyl violet-iodine ...
Microbial growth requirements:
... notatum),and the cephalosporins. Compounds that are still isolated from living organisms are the aminoglycosides, whereas other chemotherapeutic agents—for example, the sulfonamides,and the quinolones, are produced by chemical synthesis. ...
... notatum),and the cephalosporins. Compounds that are still isolated from living organisms are the aminoglycosides, whereas other chemotherapeutic agents—for example, the sulfonamides,and the quinolones, are produced by chemical synthesis. ...
Observing Microorganisms through a Microscope
... Common Basic Dyes crystal violet methylene blue safranin basic fuchsin ...
... Common Basic Dyes crystal violet methylene blue safranin basic fuchsin ...
Exam 2
... Which of the following is not an example of an autoprotective mechanism used by microbes producing antibiotics? (a) using a transmembrane pump to export newly synthesized antibiotics (b) co-expressing genes for membrane-bound protein export pumps and antibiotic production (c) altering the structure ...
... Which of the following is not an example of an autoprotective mechanism used by microbes producing antibiotics? (a) using a transmembrane pump to export newly synthesized antibiotics (b) co-expressing genes for membrane-bound protein export pumps and antibiotic production (c) altering the structure ...
Types of Infection
... Infectious capacity of lethal pathogens can be expressed in terms of number of organisms required to kill 50% of animals challenged with infection - LD50 Infectious capacity of non-lethal pathogens can be expressed as number of organisms required to cause disease in 50% of animals challenged with in ...
... Infectious capacity of lethal pathogens can be expressed in terms of number of organisms required to kill 50% of animals challenged with infection - LD50 Infectious capacity of non-lethal pathogens can be expressed as number of organisms required to cause disease in 50% of animals challenged with in ...
Bio 230 - Microbiology
... with a length of 2 to 6 µm and a diameter of around 0.5 µm. They are non-sporeforming, Gram negative autotrophs. Aquifex tend to form cell aggregates composed of up to 100 individual cells. ...
... with a length of 2 to 6 µm and a diameter of around 0.5 µm. They are non-sporeforming, Gram negative autotrophs. Aquifex tend to form cell aggregates composed of up to 100 individual cells. ...
Food preservation - Eduspace
... Drying: Removing moisture from food by sun, air, heat to inhibit (slow down or prevent) the growth of bacteria and mold. Smoking: The addition of smoke and heat to preserve food by the action of the chemicals from the smoked wood and the partial drying of the food. Refrigeration/Freezing: The loweri ...
... Drying: Removing moisture from food by sun, air, heat to inhibit (slow down or prevent) the growth of bacteria and mold. Smoking: The addition of smoke and heat to preserve food by the action of the chemicals from the smoked wood and the partial drying of the food. Refrigeration/Freezing: The loweri ...
CHAPTER 11 BACTERIA Clinically Significant
... Morphology - Do not form cell walls and so are very pleomorphic. Can form filaments that resemble fungi. Small, ranging from 0.1-0.25 µm. ...
... Morphology - Do not form cell walls and so are very pleomorphic. Can form filaments that resemble fungi. Small, ranging from 0.1-0.25 µm. ...
transformation - susanpittinaro
... ◦ Evolved in bacteria to cut up foreign DNA “Restrict” the action of the attacking organism Protection against viruses & other bacteria Bacteria protect their own DNA by methylation & by not using the base sequences recognized by the enzymes in their own DNA ...
... ◦ Evolved in bacteria to cut up foreign DNA “Restrict” the action of the attacking organism Protection against viruses & other bacteria Bacteria protect their own DNA by methylation & by not using the base sequences recognized by the enzymes in their own DNA ...
Understanding Our Environment
... Examples: Iron, Sulfur, and Hydrogen Bacteria Iron bacteria convert soluble compounds of iron to insoluble substances that accumulate as deposits (e.g. in water pipes). Sulfur bacteria convert H2S to elemental sulfur and sulfur to ...
... Examples: Iron, Sulfur, and Hydrogen Bacteria Iron bacteria convert soluble compounds of iron to insoluble substances that accumulate as deposits (e.g. in water pipes). Sulfur bacteria convert H2S to elemental sulfur and sulfur to ...
scope and history of microbiology
... Antibiotics are chemicals produced by bacteria and fungi that inhibit or kill other microbes. Quinine from tree bark was long used to treat ...
... Antibiotics are chemicals produced by bacteria and fungi that inhibit or kill other microbes. Quinine from tree bark was long used to treat ...
Bacteria of Medical Importance
... natural groups based on bacteriological criteria, rather than on the basis of affected organ, mode of transmission, or type of disease. This goes with being written by a bacteriologist. Spirochetes The spirochetes are a phylogenetically distinct group of bacteria which have a unique cell morphology ...
... natural groups based on bacteriological criteria, rather than on the basis of affected organ, mode of transmission, or type of disease. This goes with being written by a bacteriologist. Spirochetes The spirochetes are a phylogenetically distinct group of bacteria which have a unique cell morphology ...
第4章 噬菌体
... phage DNA in this repressed state is called a prophage because it is not a phage but it has the potential to produce phage. In most cases the phage DNA actually integrates into the host chromosome and is replicated along with the host chromosome and passed on to the daughter cells. The cell harborin ...
... phage DNA in this repressed state is called a prophage because it is not a phage but it has the potential to produce phage. In most cases the phage DNA actually integrates into the host chromosome and is replicated along with the host chromosome and passed on to the daughter cells. The cell harborin ...
BIOCHEMICAL TESTS
... Bacteria that secrete the proteolytic exoenzyme casease hydrolyze milk protein thus creating a zone of clearing around the bacterial growth ...
... Bacteria that secrete the proteolytic exoenzyme casease hydrolyze milk protein thus creating a zone of clearing around the bacterial growth ...
Gram-Positive Bacteria
... – Gram-negative: less peptidoglycan and an outer membrane that can be toxic © 2011 Pearson Education, Inc. ...
... – Gram-negative: less peptidoglycan and an outer membrane that can be toxic © 2011 Pearson Education, Inc. ...
Document
... A) Can be taken up by other bacteria. For example the DNA to make a capsule can be taken up by a bacteria without a capsule. 39) Bacteriophage A) Lytic life cycle-phage particles eventually lyse B) Lysogenic life cycle-phage DNA gets cut out of host DNA and some host DNA comes with it. 40) Gene tran ...
... A) Can be taken up by other bacteria. For example the DNA to make a capsule can be taken up by a bacteria without a capsule. 39) Bacteriophage A) Lytic life cycle-phage particles eventually lyse B) Lysogenic life cycle-phage DNA gets cut out of host DNA and some host DNA comes with it. 40) Gene tran ...
Bacterial cell structure
Bacteria, despite their simplicity, contain a well-developed cell structure which is responsible for many of their unique biological structures. Many structural features are unique to bacteria and are not found among archaea or eukaryotes. Because of the simplicity of bacteria relative to larger organisms and the ease with which they can be manipulated experimentally, the cell structure of bacteria has been well studied, revealing many biochemical principles that have been subsequently applied to other organisms.