bodies require (these include some B vitamins for metabolism and vitamin k for blood clotting). 5. Microorganisms are used to produce antibiotics that kill or inhibit other microbes; molds such as Penicillium and bacteria such as Streptomyces and Bacillus are used to make antibiotics. 6. Vaccines are substances derived from microorganisms and are used to immunize against disease. The microbes that are the cause of infectious disease are usually the ultimate source of vaccines. 7. Microbes help to
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crystal violet stain. Gram-negative cells have a thinner cell wall through which the alcohol readily penetrates. The crystal violet is removed from these cell walls that are then stained with the safranin counterstain. Staphylococcus aureus‚ and Bacillus subtillis are Gram-positive and stain blue. E. coli is Gram-negative and stain pink. Conclusion Differential stains are more complex than simple ones and use more than one stain to differentiate cellular components. They are used to examine
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Journal of Thermal Analysis and Calorimetry‚ Vol. 94 (2008) 1‚ 75–81 FUNGICIDAL AND BACTERICIDAL ACTIVITY OF METAL DIETHYLDITHIOCARBAMATE FUNGICIDES Synthesis and characterization H. S. Rathore1‚ K. Ishratullah2‚ C. Varshney1‚ G. Varshney1 and S. C. Mojumdar3‚4* 1 2 Department of Applied Chemistry‚ Z. H. College of Engineering and Technology‚ Aligarh Muslim University‚ Aligarh 202002 India Indian Institute of Chemical Technology‚ Uppal Road‚ Hyderabad 500007‚ India 3 Department of Chemical
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Chapter 1. Microbiology – Diversity of Organisms Microorganisms- too small to be seen with the unaided eye “germ”- rapidly growing cell Microbes in our lives Pathogenic- disease causing Decompose organic waste Producers in ecosystem (photosynthesis) Produce industrial chemicals such as ethanol and acetone Produce fermented foods ( vinegar‚ cheese‚ bread) Produce products used in manufacturing (cellulose) and treatment (insulin) Designer Jeans: Made by Microbes? Stone washing- Tricoderma
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The decay bacteria decompose the proieinous compounds into amino acids‚ which are reduced to ammonia by ammonifying bacteria. The free ammonia combines in the soil to form ammonium salts. This conversion is known as ammonification. Examples are Bacillus ramosus‚ B.
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Microbiology: ‘The Correct handling of Micro-organisms’ 1. Devise a title for each of the two experiments you did : (i)‚ Experiment 1 demonstrated the growth of bacteria when placed in liquid nutrient broth culture‚ the number of species present had increased in growth. .(1) (ii) Experiment 2 illustrated the growth of bacteria when placed on different surfaces of solid agar plates which included: nutrient agar‚ CLED agar and MacConkey agar; the number of species present also had increased in growth
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Quiz #1 (Pay attention to the answer key) Question 1 In the scientific method‚ the condition which is deliberately changed is referred to as the D. experimental variable. Question 2 Which of the following is not a step in the scientific method? D. Scientific Law Question 3 When an organism’s DNA is permanently altered‚ we say that it E. mutates. Question 4 Which answer choice is not a defining characteristic of life? C. disorder
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Chapter 10 Genetic Engineering: * Bioengineering- direct deliberate modification of an organism’s genome. * Biotechnology- use of an organism’s biochemical and metabolic pathways for industrial production. 1. Tools and techniques of genetic engineering * Enzymes for dicing‚ splicing‚ and reversing nucleic acids. * Analysis of DNA. * Restriction endonucleases- recognize specific sequence of DNA and break phosphate-sugar bond. * Liagase- rejoins phosphate-sugar bonds cuts
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Lab Practicum‚ Micro 200‚ study guide When you did your hand wash experiment‚ you decided a variable to test‚ say‚ hot vs cold water‚ you called this variable an “experimental variable” since it was the variable you were testing experimentally. In order to get meaningful data‚ you need to keep other things the same‚ for example the washing time had to be the same for both‚ you called the washing time a _Control_______ variable. Through the semester‚ you have used two bacteria that produce
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Europe had suffered one of the worst natural mishaps the world had ever seen. From the wings of Italy through to Ireland‚ its inhabitants had lost their last strand of hope as a plethora of violent behavior and barbarism had befallen upon them. While morality deteriorated and respect for human life seemed impracticable‚ the people of these times were being threatened to their extinction. Their hope in God grew weary as the living learned to expect not the graceful hand of the God they knew‚ but rather
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