an organism that does not require a growth factor is called
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- Growth factors are organized into three categories. Some bacteria (e.g. E. coli) do not require any growth factors: they can synthesize all essential purines, pyrimidines, amino acids and vitamins, starting with their carbon source, as part of their own intermediary metabolism.
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X- AND V-FACTOR DISKS Observe for growth or no growth around the disks. Organisms that require only X-Factor will grow only in the area of the X- and XV-Factor Disks. Organisms that require only V-Factor, will grow only in the areas of the V- and the XV-Factor Disks. If both X- and V-Factors are required, the organism will grow only in the area of the XV-Factor Disk. In cases where slight growth occurs around the V-Factor Disk, the growth must be at least equal in amount to that around the XV-Factor Disk before the organism can be considered H. parainfluenzae .
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Streptococcus & staphylococcus a bacteria is aerobic, and it can not grow with out oxygen. what type of bacteria is this? strict obligate aerobe a bacteria is aerobic, but still grows with and without oxygen.
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What is the difference between short stature and growth failure? Constitutional growth delay is the medical term for late bloomers. These individuals are healthy and reach normal adult heights, but grow later than other children. Idiopathic short stature refers to short stature without an identifiable cause. The FDA approved growth hormone therapy for children with idiopathic short stature; the height cut-off is the bottom 1 percentile for age.
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- In this article. Despite its name, the bacterium called Haemophilus influenzae type b, or Hib, does not cause the flu. It does, however, cause Hib disease, a serious health threat to children, especially those under age 5.Fortunately, the Hib vaccine, available since 1992, provides safe and effective protection against that threat.n this article. Despite its name, the bacterium called Haemophilus influenzae type b, or Hib, does not cause the flu. It does, however, cause Hib disease, a serious health threat to children, especially those under age 5.
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- Growth is a hallmark feature of life - it simply means the coordinated. and regulated increase in biological mass over time; bacterial. growth involves a coordinated division of one bacterial cell into two. in a rapid process called binary fission; in bacteria growth. and reproduction are closely linked;
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- A faculatative anerobe does NOT require oxygen for growth but may  use if available so it can grow in aerobic and anaerobic  conditions. Too much oxygen is NOT toxic.   … A micro-aerofile CAN'T grow without oxygen but too much oxygen is  toxic so it must have a low concentration in order to grow.
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Life The smallest contiguous unit of life is called an organism. Organisms are composed of one or more cells, undergo metabolism, maintain homeostasis, can grow, respond to stimuli, reproduce (either sexually or asexually) and, through evolution, adapt to their environment in successive generations.eath is the permanent termination of all vital functions or life processes in an organism or cell. It can occur as a result of an accident, medical conditions, biological interaction, malnutrition, poisoning, senescence, or suicide. After death, the remains of an organism re-enter the biogeochemical cycle.
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- True Pleiomorphic Growth. True dimorphic growth is found in a number of fungi that cause disease in mammals, insects and plants. Outside the body, the fungus is found as a filamentous mycelium. In general, the hyphae have the potential to invade bodies.
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Genetic Engineering An organism that is generated through genetic engineering is considered to be a genetically modified organism (GMO). The first GMOs were bacteria generated in 1973 and GM mice in 1974. Insulin-producing bacteria were commercialized in 1982 and genetically modified food has been sold since 1994.f genetic material from the same species or a species that can naturally breed with the host is used the resulting organism is called cisgenic. Genetic engineering can also be used to remove genetic material from the target organism, creating a gene knockout organism.
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Anaerobic organismupdate An anaerobic organism or anaerobe is any organism that does not require oxygen for growth. It could possibly react negatively and may even die if oxygen is present. There are three types: 1  obligate anaerobes, which cannot use oxygen for growth and are even harmed by it. 2  aerotolerant organisms, which cannot use oxygen for growth, but tolerate the presence of it. 3  facultative anaerobes, which can grow without oxygen but can utilize oxygen if it is present.
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Anaerobic organism An anaerobic organism or anaerobe is any organism that does not require oxygen for growth. It may react negatively or even die if oxygen is present. An anaerobic organism may be unicellular (e.g. protozoans, bacteria) or multicellular.
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- This process of differential survival and reproduction is known as natural selection. Non-genetic changes that occur during an organism's life span, such as increases in muscle mass due to exercise and diet, cannot be passed on to the next generation and are not examples of evolution. Learn More. 2.
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- Fundamental Statements for this Learning Object: 1. Endospores are dormant alternate life forms produced by a few genera of bacteria. 2. The genus Bacillus (an obligate aerobe often living in the soil) and the genus Clostridium (an obligate anaerobe living in the gastrointestinal tract of animals) produce endospores.3.undamental Statements for this Learning Object: 1. Endospores are dormant alternate life forms produced by a few genera of bacteria. 2. The genus Bacillus (an obligate aerobe often living in the soil) and the genus Clostridium (an obligate anaerobe living in the gastrointestinal tract of animals) produce endospores.
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- Anything living in an ecosystem is a biotic factor. This is in contrast to abiotic factors, which are non-living factors of an ecosystem. Examples of biotic factors include and are not limited to, mammals, birds, reptiles, trees, grasses, microorganisms, flowering plants, fish, bacteria, and so forth.
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- A transgenic organism occurs when an organism is modified by inserting DNA from an organism of another species. Transgenic organisms are often developed for agricultural purposes. Kiwis, oranges and other fruits have been genetically modified to be resistant to certain diseases.A transgenic organism is an organism which has been modified by inserting the DNA of another species into it as an embryo. transgenic organism is an organism which has been modified by inserting the DNA of another species into it as an embryo.
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BACTERIA Haemophilus influenzae (including Hib) is a bacterium that can cause a severe infection, occurring mostly in infants and children younger than five years of age.It can cause lifelong disability and be deadly. In spite of its name, Haemophilus influenzae bacteria do not cause influenza (the flu).There are six identifiable types of Haemophilus influenzae bacteria (a through f) and other non-identifiable types (called nontypeable). The one most people are familiar with is Haemophilus influenzae type b, or Hib.n spite of its name, Haemophilus influenzae bacteria do not cause influenza (the flu). There are six identifiable types of Haemophilus influenzae bacteria (a through f) and other non-identifiable types (called nontypeable).
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- An exponential growth curve is typically seen if there is no  predator for a population of animals or if the predator's  population decreases. Without any, or many, predator…s to keep the  species' population in check, the population may grow rapidly.
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Spore A dormant, reproductive cell formed by certain organisms. It is thick-walled and highly resistant to survive under unfavorable conditions so that when conditions revert to being suitable it gives rise to a new individual. Supplement. Some of the spore-producing organisms are bacteria, fungi, algae and plants.In plants, a spore is similar to a seed by being a dispersal unit. The difference is that the spore has very little stored food resources compared with seeds.Some bacteria that can form spores are health hazards as they can survive pasteurization and sterilization. dormant, reproductive cell formed by certain organisms. It is thick-walled and highly resistant to survive under unfavorable conditions so that when conditions revert to being suitable it gives rise to a new individual. Supplement. Some of the spore-producing organisms are bacteria, fungi, algae and plants.
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I am Adam Lanzaâs Mother For E. coli, however, growth conditions are well known and very simple. E. coli is a chemoautotroph; it can synthesize all it needs to grow from water, simple inorganic chemicals and an energy source. It can extract the energy it needs through the oxidation of organic compounds.raditional methods for studying the growth and behavior of microbes rely on the ability to grow the organism as a monoculture; a monoculture contains one and only one type of organism. This is not always easy and in some cases, it may not even be possible.
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- The normal growth of the bacterial flora in the intestine is not an infection, because the bacteria are not harming the host. An organism which colonizes and harms a host's health is often called a pathogen.
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Endospore An endospore is a dormant, tough, and non-reproductive structure produced by certain bacteria from the Firmicute phylum. The name endospore is suggestive of a spore or seed-like form (endo means within), but it is not a true spore (i.e., not an offspring).t is a stripped-down, dormant form to which the bacterium can reduce itself. Endospore formation is usually triggered by a lack of nutrients, and usually occurs in gram-positive bacteria. In endospore formation, the bacterium divides within its cell wall. One side then engulfs the other.
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Haemophilus Influenzae Infections It is a nonmotile, non–spore-forming, fastidious, facultative anaerobe. Some strains of H influenzae possess a polysaccharide capsule. These strains are serotyped into 6 different types (a-f) based on their biochemically different capsules. Some strains have no capsule and are termed nonencapsulated H influenzae or nontypeable H influenzae (NTHi).
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- Both X and V factors are growth factors that are essential for certain organisms like Haemophilus species and also enhance growth of organisms like Neisseria species. X+V factor discs are the sterile filter paper discs impregnated with growth factors x <(>&<)> V which are used for differentiating Haemophilus species in conjuction of X factor & V factor discs. Bordetella and Haemophilus species can also be identified on the basis of the requirement of X and V growth factors in the basal medium. The X factor (hemin) and V factor (Coenzyme- Nicotinamide adenine dinucleotide NAD+) are impregnated on the sterile filter paper discs of diameter 6 mm. The test organism requiring X factor alone, grows only in the vicinities of X and X+V factor discs. Those which require V factor alone grow in the vicinities of V and X+V factor discs. If both X and V factors are required, then the organism will grow only in the vicinity of the X+V factor discs.
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- Therefore,this is a series in base 2. It is an exponential series, since the number that increases in theseries is the exponent. Thus, bacteria showexponential growth.Exponential growth leads to rapidlyincreasing populations. For example, abacterium that divides every 30 min has a generation time of 30 min.
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- Some special features of model organism. 1  They are easy to grow and require minimum space. 2  Require lesser nutrients for growth. 3  They have very short generation time. 4  Resembles to others organisms.
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Define Bacteria Spore-forming bacteria. When certain bacteria grow, they have the ability to develop resistance to extreme heat, dryness and chemicals. These bacteria are called spore formers because they develop a shell which is capable of protecting the cell under adverse conditions.The spore is the resting stage of the live bacteria and it can begin to grow into an active cell when proper growth conditions are provided.hese bacteria produce diseases in humans, animals and plants and are called pathogenic bacteria. They are a relatively few in number and produce disease by growing on or in certain tissues and producing harmful poisons or toxins, which people and animals consume. Spoilage bacteria.