Biogeochemical Applications in Nuclear Decommissioning and
... special properties of the bacteria that are naturally present in them. Of particular interest is the ability of bacteria to form new minerals and to remove radionuclides from solution (where they can migrate) to solid forms . The aims of the project are: (1) To determine how micro-organisms can be u ...
... special properties of the bacteria that are naturally present in them. Of particular interest is the ability of bacteria to form new minerals and to remove radionuclides from solution (where they can migrate) to solid forms . The aims of the project are: (1) To determine how micro-organisms can be u ...
Quiz - Portland State University
... The new planctomycete grows extremely slowly, dividing only once every two weeks. • The identification of this bacterium as the one responsible for anaerobic oxidation of ammonia makes an important contribution to the problem of unculturability. ...
... The new planctomycete grows extremely slowly, dividing only once every two weeks. • The identification of this bacterium as the one responsible for anaerobic oxidation of ammonia makes an important contribution to the problem of unculturability. ...
Chapter 11 – PROKARYOTES
... Characteristics associated with this class: • broad range of (sometimes unusual) morphology • capable of growth at very low nutrient levels • many important nitrogen fixers ...
... Characteristics associated with this class: • broad range of (sometimes unusual) morphology • capable of growth at very low nutrient levels • many important nitrogen fixers ...
Classification Systems Change as Scientists Learn More
... be fungi/animal or plants. • All have large, complex cells with nucleus (eukaryote); some eat other organisms, some get energy from sun (like plants); no specialized cells or structures • Many live in pond/sea water; many microscopic, but seaweed is a very large protist (may grow hundreds of feet/ye ...
... be fungi/animal or plants. • All have large, complex cells with nucleus (eukaryote); some eat other organisms, some get energy from sun (like plants); no specialized cells or structures • Many live in pond/sea water; many microscopic, but seaweed is a very large protist (may grow hundreds of feet/ye ...
Where can we find bacteria?
... How can you find bacteria? • You can’t see it, so how do you find it? • Under the right conditions, bacteria grows very fast, exponentially • Some bacteria populations can double every 10 minutes • Bacteria grow in colonies – a colony is a visible mass of bacterial growth on solid medium that devel ...
... How can you find bacteria? • You can’t see it, so how do you find it? • Under the right conditions, bacteria grows very fast, exponentially • Some bacteria populations can double every 10 minutes • Bacteria grow in colonies – a colony is a visible mass of bacterial growth on solid medium that devel ...
Microorganisms Review Sheet
... 1. What are the three types of viruses? Be able to diagram and label. 2. What does a virus have to have in order to live and reproduce? 3. What are some diseases caused by viruses? 4. How do viruses reproduce? Diagram and label both the Lytic and Lysogenic cycles. 5. What are some ways to prevent th ...
... 1. What are the three types of viruses? Be able to diagram and label. 2. What does a virus have to have in order to live and reproduce? 3. What are some diseases caused by viruses? 4. How do viruses reproduce? Diagram and label both the Lytic and Lysogenic cycles. 5. What are some ways to prevent th ...
Bacteria - public.asu.edu
... Ability to “swim” using flagellum/flagella Some species can move at speeds exceeding 50 µm/sec, about 100 times their body length per second Most spiral-shaped or bacilli are motile; cocci are non-motile Capable of taxis (movement towards or away from stimuli) ...
... Ability to “swim” using flagellum/flagella Some species can move at speeds exceeding 50 µm/sec, about 100 times their body length per second Most spiral-shaped or bacilli are motile; cocci are non-motile Capable of taxis (movement towards or away from stimuli) ...
who turned out the lights
... they produce sulfuric acid. In some caves, bacteria produce so much sulfur that it is toxic to humans. In other caves, microbes form a thick gray slime that drips down the walls and off the ceilings. These are very appropriately called “snottites.” (EWWW!) ...
... they produce sulfuric acid. In some caves, bacteria produce so much sulfur that it is toxic to humans. In other caves, microbes form a thick gray slime that drips down the walls and off the ceilings. These are very appropriately called “snottites.” (EWWW!) ...
StudyBlue Guide - Microbiology Study Guides
... Lipid A is sometimes found in the outer membrane of what bacteria? Gram negative Bacillus and Clostridium both have this in common endospores What disease was spread by smearing swords in horse manure before battle? tetanus Streptococcus mutants produces this to attach to teeth capsule prokaryotic r ...
... Lipid A is sometimes found in the outer membrane of what bacteria? Gram negative Bacillus and Clostridium both have this in common endospores What disease was spread by smearing swords in horse manure before battle? tetanus Streptococcus mutants produces this to attach to teeth capsule prokaryotic r ...
Pre Calculus (A)
... Iodine-131 is a radioactive material with a half-life of 8 years. a) What is the decay rate of iodine-131? ...
... Iodine-131 is a radioactive material with a half-life of 8 years. a) What is the decay rate of iodine-131? ...
Biol 211 (2) Chapter 29 KEY
... 1. Looking at a simple phylogenetic tree of the 3 domains, which domain shares to most common ancestry with Domain Eukarya – Bacteria or Archaea? a. Archaea and Eukarya share more common ancestry. The DNA polymerases, RNA polymerases, transcription initiation proteins, and ribosomes found in Archaea ...
... 1. Looking at a simple phylogenetic tree of the 3 domains, which domain shares to most common ancestry with Domain Eukarya – Bacteria or Archaea? a. Archaea and Eukarya share more common ancestry. The DNA polymerases, RNA polymerases, transcription initiation proteins, and ribosomes found in Archaea ...
Domain Archaea Kingdom Archaebacteria Cell type Prokaryotic Cell
... *hot, acidic environments (sulfur hot springs, thermal vents on the ocean floor, and around volcanic vents) *thrive in temperatures above 80 degrees Celsius & pH of 1-2 * many die in presence of oxygen! 2. Halophiles *live in very salty environments (use salt to generate ATP) *Great Salt Lake, Dead ...
... *hot, acidic environments (sulfur hot springs, thermal vents on the ocean floor, and around volcanic vents) *thrive in temperatures above 80 degrees Celsius & pH of 1-2 * many die in presence of oxygen! 2. Halophiles *live in very salty environments (use salt to generate ATP) *Great Salt Lake, Dead ...
unit 4 bacteria
... or lipids – store nutrients • Bacterial Chromosome – closed loop of DNA without a membrane or proteins (nucleoid region) • Plasmids – smaller, separate molecules of DNA – few genes but do give bacteria drug resistance (R genes) ...
... or lipids – store nutrients • Bacterial Chromosome – closed loop of DNA without a membrane or proteins (nucleoid region) • Plasmids – smaller, separate molecules of DNA – few genes but do give bacteria drug resistance (R genes) ...
Virus_Bacteria_Fungi - Bio-bull
... Composed of peptidoglycan molecules The cell wall is often enclosed by a glycocalyx or a sticky mesh composed of polypeptides, polysaccharides, or both. It helps the cell attach to surfaces such as teeth and mucous membranes and protect against phagocytosis. ...
... Composed of peptidoglycan molecules The cell wall is often enclosed by a glycocalyx or a sticky mesh composed of polypeptides, polysaccharides, or both. It helps the cell attach to surfaces such as teeth and mucous membranes and protect against phagocytosis. ...
ClassificationBacteriaViruses ATA StudyGuide Answers
... 7. What reflects the evolutionary history of a species? Phylogeny 8. Which type of character is found within an entire line of descent of a group of organisms? Ancestral 9. A type of characteristic that has evolved in related species over time is known as what? Derived 10. True or false: When constr ...
... 7. What reflects the evolutionary history of a species? Phylogeny 8. Which type of character is found within an entire line of descent of a group of organisms? Ancestral 9. A type of characteristic that has evolved in related species over time is known as what? Derived 10. True or false: When constr ...
Kingdom Archaebacteria
... Humans are most affected when food is not properly prepared. Food poisoning is the common name given to people who get severely sick after eating something that wasn’t cooked well. ...
... Humans are most affected when food is not properly prepared. Food poisoning is the common name given to people who get severely sick after eating something that wasn’t cooked well. ...
Three-domain system
... that divides cellular life forms into archaea, bacteria, and eukaryote domains. In particular, it emphasizes the separation of prokaryotes into two groups, originally called Eubacteria (now Bacteria) and Archaebacteria (now Archaea). Woese argued that, on the basis of differences in 16S rRNA genes, ...
... that divides cellular life forms into archaea, bacteria, and eukaryote domains. In particular, it emphasizes the separation of prokaryotes into two groups, originally called Eubacteria (now Bacteria) and Archaebacteria (now Archaea). Woese argued that, on the basis of differences in 16S rRNA genes, ...
Bacteria
... Lack nucleus and organelles (prokaryotic) Usually smaller than eukaryotic cells Single cells but can form strands or clumps Single circular piece of DNA Reproduce by binary fission ...
... Lack nucleus and organelles (prokaryotic) Usually smaller than eukaryotic cells Single cells but can form strands or clumps Single circular piece of DNA Reproduce by binary fission ...
Bacteria & Viruses - St. Mary Catholic Secondary School
... Oxygen is toxic to them and will kill them if present. • Facultative anaerobes do not use oxygen but can survive just fine if it is around. ...
... Oxygen is toxic to them and will kill them if present. • Facultative anaerobes do not use oxygen but can survive just fine if it is around. ...
Bacteria
Bacteria (/bækˈtɪəriə/; singular: bacterium) constitute a large domain of prokaryotic microorganisms. Typically a few micrometres in length, bacteria have a number of shapes, ranging from spheres to rods and spirals. Bacteria were among the first life forms to appear on Earth, and are present in most of its habitats. Bacteria inhabit soil, water, acidic hot springs, radioactive waste, and the deep portions of Earth's crust. Bacteria also live in symbiotic and parasitic relationships with plants and animals. They are also known to have flourished in manned spacecraft.There are typically 40 million bacterial cells in a gram of soil and a million bacterial cells in a millilitre of fresh water. There are approximately 5×1030 bacteria on Earth, forming a biomass which exceeds that of all plants and animals. Bacteria are vital in recycling nutrients, with many of the stages in nutrient cycles dependent on these organisms, such as the fixation of nitrogen from the atmosphere and putrefaction. In the biological communities surrounding hydrothermal vents and cold seeps, bacteria provide the nutrients needed to sustain life by converting dissolved compounds, such as hydrogen sulphide and methane, to energy. On 17 March 2013, researchers reported data that suggested bacterial life forms thrive in the Mariana Trench, which with a depth of up to 11 kilometres is the deepest part of the Earth's oceans. Other researchers reported related studies that microbes thrive inside rocks up to 580 metres below the sea floor under 2.6 kilometres of ocean off the coast of the northwestern United States. According to one of the researchers, ""You can find microbes everywhere — they're extremely adaptable to conditions, and survive wherever they are.""Most bacteria have not been characterized, and only about half of the phyla of bacteria have species that can be grown in the laboratory. The study of bacteria is known as bacteriology, a branch of microbiology.There are approximately ten times as many bacterial cells in the human flora as there are human cells in the body, with the largest number of the human flora being in the gut flora, and a large number on the skin. The vast majority of the bacteria in the body are rendered harmless by the protective effects of the immune system, and some are beneficial. However, several species of bacteria are pathogenic and cause infectious diseases, including cholera, syphilis, anthrax, leprosy, and bubonic plague. The most common fatal bacterial diseases are respiratory infections, with tuberculosis alone killing about 2 million people per year, mostly in sub-Saharan Africa. In developed countries, antibiotics are used to treat bacterial infections and are also used in farming, making antibiotic resistance a growing problem. In industry, bacteria are important in sewage treatment and the breakdown of oil spills, the production of cheese and yogurt through fermentation, and the recovery of gold, palladium, copper and other metals in the mining sector, as well as in biotechnology, and the manufacture of antibiotics and other chemicals.Once regarded as plants constituting the class Schizomycetes, bacteria are now classified as prokaryotes. Unlike cells of animals and other eukaryotes, bacterial cells do not contain a nucleus and rarely harbour membrane-bound organelles. Although the term bacteria traditionally included all prokaryotes, the scientific classification changed after the discovery in the 1990s that prokaryotes consist of two very different groups of organisms that evolved from an ancient common ancestor. These evolutionary domains are called Bacteria and Archaea.