INTRODUCTION Many infectious diseases caused by infectious agents‚ including bacteria‚ fungi‚ viruses and parasites‚ have plagued human existence CITATION Kon97 \l 1033 (Koneman‚ 1997). Thus the identification of bacteria becomes all the more important in the search for medicines and cure. Identification of bacteria is a multistep process because while some preliminary guesses can be made from the morphology of microbes on various differential agars‚ various other tests need to be done to differentiate
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extreme env. eg. The Dead Sea Thermophiles → live in hot sulfurous water eg. Hot springs at Yellowstone National Park Fungi Cells hv a district nucleus = DNA surrounded by special envelope(lipid membrane) = nuclear membrane unicellular(eg. yeast) / multicellular (eg. Mushrooms‚molds) cell wall of true fungi →compose of chitin 最common fungi → molds(mycelia (bread & fruit) → compose of long hyphae) 吸收nourishment by absorbing sol. of organic material from environment (eg. Soil ‚ seawater)slime
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bacteria…. a. are required for conversion of biomass to methane and CO2 in methanogenic ecosystems. b. use protons as terminal electron acceptors. c. cannot grow to high density in the absence of methanogens. d. are involved in the sulfate-dependent anaerobic oxidation of methane. e. All of the above correctly complete the sentence 5. Which of the following mechanisms are not used by chemolithotrophs to bring electron donors and acceptors into close proximity? a. Symbiotic associations with eukaryotes
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Production of Bioethanol from Tomato (Solanum lycopersicum) INTRODUCTION Background of the Study Bioethanol is the most widely used among the liquid biofuels. Ethanol is produced by fermentation of sugars from sugarcane or sugar beet‚ and indirectly from more complex carbohydrates such as starch from corn‚ wheat‚ potatoes or cassava. Ethanol thus produced is expensive as it dips into food and feed material. Bioethanol refers to ethanol produced from complex carbohydrates such as lignocellulose
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Human Body Sugar has occurred naturally in our environment since the dawn of time‚ and mankind has been enjoying its sweet taste almost that long. After all‚ glucose occurs naturally in corn‚ fructose is the natural sweetener found in fruit‚ sucrose occurs naturally in sugar beets and cane‚ and lactose is found in milk. They all taste "equally" sweet on the tongue‚ but our bodies can tell the difference between these monosaccharide ’s‚ and they most certainly don ’t have equally beneficial effects
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(4) uses of energy in biological processes (B); active transport; muscle contraction; nerve transmission; synthesis; translocation; nitrogen fixation; receptors ENERGY TRANSFERS WHICH TAKE PLACE INSIDE LIVING ORGANISMS Living organisms including all plants and animals require energy for their cellular processes. In biological processes‚ the immediate energy source is often in the form adenosine triphosphate (ATP). The nucleotide ATP maintains both catabolic and anabolic reactions. An example of
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Metabolic pathways: An overview of cellular respiration and fermentation Chapter 6 Cellular respiration‚ photosynthesis occur in eukaryotic organelles (mitochondria‚ chloroplasts) CELLULAR RESPIRATION GLUCOSE 1 2 GLYCOLYSIS 1 PYRUVATE OXIDATION2 KREBS CYCLE 3 2 ELECTRON TRANSPORT 4 CHAIN 2 NET ATP PRODUCED = 36 Nelson‚ 2003 Redox Reactions • Reduction-oxidation reactions – Transfer electrons from donor to acceptor atoms • Donor is oxidized as it releases electrons
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identify and differentiate two closely related species. 2. What are the carbohydrate profiles of the organisms you tested? (2) The yeast carbohydrate profile came out with glucose and fructose positive and Mannitol negative. The staph epidermidis was glucose‚ lactose and sucrose positive and mannitol negative. 3. Why is it important not to incubate the fermentation tubes more than 24 hours?(1) Because the sugar test will have a higher chance that the color will change and could alter the
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Online BIO 150 Introductory Microbiology #3 Lab Report NAME __ Lab Group 2_____ Answer the following questions as you work your way through the lab material typing in your answers. Then submit your finished lab report as a Microsoft Word document. This lab report is worth 100 points towards your final lab grade. Each Q is worth 2 points unless otherwise noted. Also‚ per the Honor Code‚ this work must be your own. This is due Mon. 10/8 at 11:59 PM. The theme of this lab is the identification
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Antimicrobial Property of Mango Twigs Extract against Dental Caries-causing Microorganisms (Streptococcus mutans‚ Streptococcus sobrinus) Jervene Venturina‚ Santiago Bataller Jr.‚ Raymark Camato Dental caries is an ecological disease in which the diet‚ the host and the microbial flora interact over a period of time in such a way as to encourage demineralisation of the tooth enamel which results to caries formation. This disease can affect both the enamel (the outer coating of the tooth) and
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