provide human products through genetic engineering or clean up environment waste through bioremediation is part of the sub discipline microbiology referred to as biotechnology ● A pathogen is the term used to refer to any disease causing microorganism ● The term ubiquitous is used to refer to the fact that microbes exists nearly everywhere on the earth ● A good hypothesis must be: able to be supported or rejected by experimentation ● A virion uses an infected host cells genetic and metabolic machinery for reproduction
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[pic] Hannah Melanchuk Dr. Robert Suran May 1 2013 Microbiology Abstract Over a three week time span I was able to successfully identify an unknown microorganism by combining the results of several tests. The first test was the Gram stain test which showed the microorganism was Gram positive and rod shaped. Using an Unknown Identification Flowchart‚ I proceeded to inoculate a Starch plate. In week 2‚ I analyzed the Starch plate and was able to determine that
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Probiotics are live microorganisms which are believed to provide health benefits when consumed. The term probiotics meaning ‘for life’ (pro= ‘for’ or ‘in support’‚ biotic= ‘life’) is derived from Latin & Greek language. The term was first used by Lilly and Stillwell in 1965 to describe “substances secreted by one microorganism which stimulates the growth of another microorganism” i.e. which is exactly opposite of ‘antibiotics’‚ later in 1971 Sperti used the term probiotics to describe “tissue extracts
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indicates whether a microbe uses the mixed acid fermentation pathway. If the pH falls to 4 or lower (acidic)‚ the indicator turns red‚ signaling a positive result. If the pH rises to 6 or above‚ the indicator turns yellow‚ signifying that the microorganism is negative for mixed acid production. U45 was negative for mixed acids
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surroundings which includes the abiotic component (the non living) and biotic component (the living) around us. The abiotic environment includes water‚ air and soil while the biotic environment consists of all living organisms – plants‚ animals and microorganisms. Environmental pollution broadly refers to the presence of undesirable substances in the environment which are harmful to man and other organisms. In the past decade or two‚ there has been a significant increase in the levels of environmental
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Biodegradation OF Xenobiotics . OVERVIEW Microorganisms play an important role in the removal of synthetic organic compounds from the environment. This chapter gives an overview of the evolution of biodegradation pathways and describes the strategies that microorganisms have evolved to transform important molecular structures. The actual effectiveness of biodegradation in the environment is determined by the bioavailability of the
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infection Asepsis- An environment that is free of harmful microorganisms. An aseptic technique ensures that only uncontaminated equipment and fluids come into contact with susceptible body sites. It should be used during any clinical procedure that bypasses the body’s natural defences. Using the principles of asepsis minimises the spread of organisms from one person to another. Aseptic techniques are used to reduce contamination from microorganisms. It involves strict guidelines that help to prevent infection
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drug resistance. Because of drug resistance there are new ways of treating catheter associated urinary tract infections. Cranberry juice and cranberry extract consumed by women may interfere with microorganism attachment. Silver alloy catheters have also been shown to effect the adherence of microorganism. Silver also minimizes the formation of biofilm and migration to the bladder. Bacterial lysate is another UTI prevention method‚ which is a vaccine that introduces a small amount of E. coli into
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FOOD QUALITY Quality * Relates to excellent product or services that fulfills or exceeds our expectations Food Quality * Includes all attributes that influence product’s value to the consumers. This includes‚ Negative attributes (e.g.spoilage‚ contamination with filth‚ discoloration‚ off odors & flavors; Positive attributes (e.g. origin‚ color‚ flavor‚ texture and processing method used -Food Quality is a term which may refer to several things: ♣ the extent to which food contains
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Agents Of Spoilage 1.Microorganism A microorganism (from the Greek: μικρός‚ mikros‚ "small" and ὀργανισμός‚ organismós‚ "organism") or microbe is a microscopic organism‚ which may be a single cell[1] or multicellular organism. The study of microorganisms is called microbiology‚ a subject that began with Antonie van Leeuwenhoek’s discovery of microorganisms in 1675‚ using a microscope of his own design. On 8 November 2013‚ scientists reported the discovery of what may be the earliest signs of life
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