Phylogeny of Bacteria, Archaea, and Eukaryotic
... Other phyla have been proposed, predominately of archaea that have been postulated but not cultured: Aigarchaeota, Korarchaeota, Thamarchaeota, Nanoarchaeota Comparison to other domains: http://en.wikipedia.org/wiki/Archaea ...
... Other phyla have been proposed, predominately of archaea that have been postulated but not cultured: Aigarchaeota, Korarchaeota, Thamarchaeota, Nanoarchaeota Comparison to other domains: http://en.wikipedia.org/wiki/Archaea ...
Document
... The endosymbiosis theory postulates that The mitochondria of eukaryotes evolved from aerobic bacteria (probably related to the rickettsias) living within their host cell. The chloroplasts of eukaryotes evolved from endosymbiotic cyanobacteria. Eukaryotic cilia and flagella may have arisen from endos ...
... The endosymbiosis theory postulates that The mitochondria of eukaryotes evolved from aerobic bacteria (probably related to the rickettsias) living within their host cell. The chloroplasts of eukaryotes evolved from endosymbiotic cyanobacteria. Eukaryotic cilia and flagella may have arisen from endos ...
Sulfate- and Sulfur- Reducing Bacteria
... Sulfate- and Sulfur- Reducing Bacteria: Desulfovibrio desulfuricans ...
... Sulfate- and Sulfur- Reducing Bacteria: Desulfovibrio desulfuricans ...
Характеристика бактерий
... Clone: Population of cells derived from a single cell Strain: Genetically different cells within a clone Culture: grown in the lab ...
... Clone: Population of cells derived from a single cell Strain: Genetically different cells within a clone Culture: grown in the lab ...
3.1.3 Monera – Bacteria
... produced by micro-organisms that stop the growth of, or kill, other micro-organisms without damaging human tissue. • Antibiotics can be used to control bacterial and fungal infections but do not effect viruses • The first antibiotic, Penicillin, was isolated from a fungus was by Sir Alexander Flemin ...
... produced by micro-organisms that stop the growth of, or kill, other micro-organisms without damaging human tissue. • Antibiotics can be used to control bacterial and fungal infections but do not effect viruses • The first antibiotic, Penicillin, was isolated from a fungus was by Sir Alexander Flemin ...
From prokaryotes to eukaryotes
... in our intestine. It contains tens of trillions of microorganisms, including at least 1000 different species i off known k bacteria b i with i h more than h 3 million genes (150 times more than human genes). Microbiota can, can in total, total weigh up to 2 kg. kg One third of our gut microbiota is ...
... in our intestine. It contains tens of trillions of microorganisms, including at least 1000 different species i off known k bacteria b i with i h more than h 3 million genes (150 times more than human genes). Microbiota can, can in total, total weigh up to 2 kg. kg One third of our gut microbiota is ...
18.4 Bacteria and Archaea
... Prokaryotes are widespread on Earth. • Prokaryotes can be grouped by their need for oxygen. – obligate anaerobes are poisoned by oxygen – obligate aerobes need oxygen – facultative aerobes can live with or without oxygen ...
... Prokaryotes are widespread on Earth. • Prokaryotes can be grouped by their need for oxygen. – obligate anaerobes are poisoned by oxygen – obligate aerobes need oxygen – facultative aerobes can live with or without oxygen ...
Bacteria - denkc.com
... Reproduction of Bacteria Bacteria may reproduce either asexually or sexually. Primarily they reproduce asexually, which they accomplish by simple cell division. During this process, one cell divides into two daughter cells with the development of a transverse cell wall. ...
... Reproduction of Bacteria Bacteria may reproduce either asexually or sexually. Primarily they reproduce asexually, which they accomplish by simple cell division. During this process, one cell divides into two daughter cells with the development of a transverse cell wall. ...
LECTURE # 1
... The breef history of microbiology. 320 years ago the first microscope was developed by Antony Van Leeuwenhoek, Dutch microscopist. He was the first person, who sow and described microbes. He himself made simple lenses, which magnified 160 – 300 fold. In 1695 he published his work – “ The Secrets of ...
... The breef history of microbiology. 320 years ago the first microscope was developed by Antony Van Leeuwenhoek, Dutch microscopist. He was the first person, who sow and described microbes. He himself made simple lenses, which magnified 160 – 300 fold. In 1695 he published his work – “ The Secrets of ...
Ch 10. Sterilization and Disinfection
... Cobalt60 has greater energy than U.V. light, therefore more effective. Used mainly in industrial facilities e.g. sterilization of disposable plastic syringes, gloves, specimens containers and Petri Dishes. ...
... Cobalt60 has greater energy than U.V. light, therefore more effective. Used mainly in industrial facilities e.g. sterilization of disposable plastic syringes, gloves, specimens containers and Petri Dishes. ...
18 Bacteria and Viruses
... Chemoautotrophs do not need light. They use the process of chemosynthesis to break down and release inorganic materials that contain nitrogen or sulfur. They help cycle nitrogen and other inorganic materials through ecosystems. ...
... Chemoautotrophs do not need light. They use the process of chemosynthesis to break down and release inorganic materials that contain nitrogen or sulfur. They help cycle nitrogen and other inorganic materials through ecosystems. ...
Sterilization and disinfection
... Cobalt60 has greater energy than U.V. light, therefore more effective. Used mainly in industrial facilities e.g. sterilization of disposable plastic syringes, gloves, specimens containers and Petri Dishes. ...
... Cobalt60 has greater energy than U.V. light, therefore more effective. Used mainly in industrial facilities e.g. sterilization of disposable plastic syringes, gloves, specimens containers and Petri Dishes. ...
Name
... 24. Organisms, such as humans, that get their body heat from metabolism are called endothermic. Reptiles, amphibians, etc that have to use the outside environment to maintain their temp are ectothermic. 25. Earth’s early atmosphere contained little or no oxygen gas . Cyanobacteria, single-celled pro ...
... 24. Organisms, such as humans, that get their body heat from metabolism are called endothermic. Reptiles, amphibians, etc that have to use the outside environment to maintain their temp are ectothermic. 25. Earth’s early atmosphere contained little or no oxygen gas . Cyanobacteria, single-celled pro ...
This is a pore in human skin and the yellow spheres are bacteria
... clumps, such as this staphylococcus that causes infections of cuts ...
... clumps, such as this staphylococcus that causes infections of cuts ...
Nitrogen Cycle
... and 8 ATP needed for reducing N2 to ammonia. • Must have low oxygen level (< 10% atmospheric). • Different strategies for reducing O2 in aerobic habitats. • Extremely diverse phylogenetic distribution in Prokaryotes (never Eukarya). • Example of horizontal gene transfer throughout evolution. Trichod ...
... and 8 ATP needed for reducing N2 to ammonia. • Must have low oxygen level (< 10% atmospheric). • Different strategies for reducing O2 in aerobic habitats. • Extremely diverse phylogenetic distribution in Prokaryotes (never Eukarya). • Example of horizontal gene transfer throughout evolution. Trichod ...
UNIT 4: Introduction to Bacteriology
... Koch formulated a rule that came to be known as Koch’s rule, and that the disease if caused by microbes must follow this sequence. Koch’s rules: 1. Organism must be found in each case. 2. Be able to isolate organism from diseased individual 3. Must reproduce same disease when isolated organism is us ...
... Koch formulated a rule that came to be known as Koch’s rule, and that the disease if caused by microbes must follow this sequence. Koch’s rules: 1. Organism must be found in each case. 2. Be able to isolate organism from diseased individual 3. Must reproduce same disease when isolated organism is us ...
Classification_Lowy
... the DNA and as a result creates large DNA fragments. The DNA fragments from the different strains are then run on a gel and compared. Prokaryotes – Structure/Function Prokaryotes are distinguished from eukaryotes by their smaller size (0.2-10µm), their lack of internal organelles (e.g., mitochondria ...
... the DNA and as a result creates large DNA fragments. The DNA fragments from the different strains are then run on a gel and compared. Prokaryotes – Structure/Function Prokaryotes are distinguished from eukaryotes by their smaller size (0.2-10µm), their lack of internal organelles (e.g., mitochondria ...
65KB - NZQA
... Viruses reproduce in a living cell, and because they can make many hundreds of viruses inside each cell before it dies, this causes many more cells to die / organs to malfunction, which leads to illness. ...
... Viruses reproduce in a living cell, and because they can make many hundreds of viruses inside each cell before it dies, this causes many more cells to die / organs to malfunction, which leads to illness. ...
Yeast_and_Molds_Background_Info_
... storage areas. Again, we see an example of microorganisms having both positive and negative effects on food. Unlike bacteria, which multiply by binary fission, yeasts reproduce by a method called budding. (See YEAST BUDDING overhead transparency.) A small knob or bud forms on the parent cell, grows, ...
... storage areas. Again, we see an example of microorganisms having both positive and negative effects on food. Unlike bacteria, which multiply by binary fission, yeasts reproduce by a method called budding. (See YEAST BUDDING overhead transparency.) A small knob or bud forms on the parent cell, grows, ...
Classification:
... 1. How does the evidence of evolution contribute to modern classification systems? 2. Why classify? 3. On what criteria do Taxonomists base their classification of organisms? 4. In what way does scientific discovery lead to the development of a new classification group? ...
... 1. How does the evidence of evolution contribute to modern classification systems? 2. Why classify? 3. On what criteria do Taxonomists base their classification of organisms? 4. In what way does scientific discovery lead to the development of a new classification group? ...
Unit 2 Classification (chapter 18) Test Review
... 24. Organisms, such as humans, that get their body heat from metabolism are called endothermic. Reptiles, amphibians, etc that have to use the outside environment to maintain their temp are ectothermic. ...
... 24. Organisms, such as humans, that get their body heat from metabolism are called endothermic. Reptiles, amphibians, etc that have to use the outside environment to maintain their temp are ectothermic. ...
Insects and Microbes
... Bacteria are prokaryotes, They have a cell wall. no well-defined nucleus or organelles. Bacterial pathogens are classified according to many factors such as infective dose, site of infection, host range and mode of action. Insect bacterial pathogens includes two main groups Spore formers and non-spo ...
... Bacteria are prokaryotes, They have a cell wall. no well-defined nucleus or organelles. Bacterial pathogens are classified according to many factors such as infective dose, site of infection, host range and mode of action. Insect bacterial pathogens includes two main groups Spore formers and non-spo ...
Honors Biology - WordPress.com
... nonfunctional donor cell to that of a function recipient cell. If a bacterium dies, its cell wall falls apart and the components of the cell (including the DNA) flow into the surroundings. The dead bacterium’s DNA seems to break into small; pieces and the living bacterium might “sense” that on or mo ...
... nonfunctional donor cell to that of a function recipient cell. If a bacterium dies, its cell wall falls apart and the components of the cell (including the DNA) flow into the surroundings. The dead bacterium’s DNA seems to break into small; pieces and the living bacterium might “sense” that on or mo ...
Microorganism
A microorganism (from the Greek: μικρός, mikros, ""small"" and ὀργανισμός, organismós, ""organism"") is a microscopic living organism, which may be single celled or multicellular. The study of microorganisms is called microbiology, a subject that began with the discovery of microorganisms in 1674 by Antonie van Leeuwenhoek, using a microscope of his own design.Microorganisms are very diverse and include all the bacteria and archaea and almost all the protozoa. They also include some fungi, algae, and certain animals, such as rotifers. Many macroscopic animals and plants have microscopic juvenile stages. Some microbiologists also classify viruses (and viroids) as microorganisms, but others consider these as nonliving.Microorganisms live in every part of the biosphere, including soil, hot springs, ""seven miles deep"" in the ocean, ""40 miles high"" in the atmosphere and inside rocks far down within the Earth's crust (see also endolith). Microorganisms, under certain test conditions, have been observed to thrive in the vacuum of outer space. The total amount of soil and subsurface bacterial carbon is estimated as 5 x 1017 g, or the ""weight of the United Kingdom"". The mass of prokaryote microorganisms — which includes bacteria and archaea, but not the nucleated eukaryote microorganisms — may be as much as 0.8 trillion tons of carbon (of the total biosphere mass, estimated at between 1 and 4 trillion tons). On 17 March 2013, researchers reported data that suggested microbial life forms thrive in the Mariana Trench. the deepest spot in the Earth's oceans. Other researchers reported related studies that microorganisms thrive inside rocks up to 580 m (1,900 ft; 0.36 mi) below the sea floor under 2,590 m (8,500 ft; 1.61 mi) of ocean off the coast of the northwestern United States, as well as 2,400 m (7,900 ft; 1.5 mi) beneath the seabed off Japan. On 20 August 2014, scientists confirmed the existence of microorganisms living 800 m (2,600 ft; 0.50 mi) below the ice of Antarctica. According to one researcher,""You can find microbes everywhere — they're extremely adaptable to conditions, and survive wherever they are.""Microorganisms are crucial to nutrient recycling in ecosystems as they act as decomposers. As some microorganisms can fix nitrogen, they are a vital part of the nitrogen cycle, and recent studies indicate that airborne microorganisms may play a role in precipitation and weather. Microorganisms are also exploited in biotechnology, both in traditional food and beverage preparation, and in modern technologies based on genetic engineering. A small proportion of microorganisms are pathogenic and cause disease and even death in plants and animals. Microorganisms are often referred to as microbes, but this is usually used in reference to pathogens.