Biotechnology‚ Julianalaan 67‚ 2628 BC Delft‚ The Netherlands K ey words: a lcoholic fermentation‚ chemostat culture‚ Crabtree effect‚ respiration‚ Saccharornyces cerevisiae‚ y easts A bstract A n overview is presented of the steady- and transient state kinetics of growth and formation of metabolic b yproducts in yeasts. Saccharomyces cerevisiae is strongly inclined to perform alcoholic fermentation. Even u nder fully aerobic conditions‚ ethanol is produced by this yeast when sugars are
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w w w e tr .X m eP e ap UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS International General Certificate of Secondary Education .c rs om *2925136620* CHEMISTRY Paper 3 (Extended) 0620/33 May/June 2012 1 hour 15 minutes Candidates answer on the Question Paper. No Additional Materials are required. READ THESE INSTRUCTIONS FIRST Write your Centre number‚ candidate number and name on all the work you hand in. Write in dark blue or black pen. You may use a pencil for any diagrams‚ graphs
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mouth‚ the most caries active appear to be Streptococcus mutans‚ Lactobacillus spp.‚ Veillonella spp. and Actinomyces spp. These bacteria can be transferred from mother to child and are present at varying levels in all human mouths. A variety of carbohydrates provide substrates for these organisms to grow on and the waste products of their metabolism -acids - initiate the tooth decay process by dissolving tooth enamel. There are three major hypotheses for the etiology of dental caries: the specific
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Ltd: An Overview Alcoholic Beverages Brewing: How Beer is made Brewing: Process Overview Beer Production: Flowchart Beer Production: Ingredients Beer Production Process o o o o o o o Mashing Lautering Boiling and Hopping Hop Separation and Cooling Fermentation Filtration Packaging 13 13 14 14 15 16 17 18 4 5 8 9 10 11 Quality Control in Beer Production 3 Kool Breweries Ltd: An Overview Kool Breweries Limited is a premium-branded beverage company dedicated to delivering quality products enjoyed
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INTRODUCTION The Gram Negative lab had two parts; the aim of the first part is to determine the concentration of gram negative bacteria in a water sample collected from a creek near Providence Road‚ Strickling. Gram negative bacteria have a cytoplasmic membrane‚ a thin peptidoglycan layer‚ and an additional outer membrane composed of phospholipids and lipopolysaccharides. Because gram negative bacteria have a relatively thin cell wall when compared to gram positive organisms‚ they are consequently
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differential exercises test the different biochemical processes that the EI can preform. Ex 5-2 oxidation-fermentation test showed the EI to be capable of oxidation and slow fermentation or fermentation only. Ex 5-21 Triple Sugar Iron Agar test showed the EI can ferment glucose and sucrose and/or lactose but is not a sulfur reducer. Ex 5-4 showed the EI is able to preform 2‚3 butanediol fermentation and produce acetoin. Many differential tests that tested the enzymatic properties and activity of the
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5 essential characteristics of all living cells: 1. Bounded by a lipid rich plasma membrane 2. Contain nucleic acid that encodes at least one complete copy of a genome a. Originally RNA… these days‚ exclusively DNA b. All cells replicate DNA by template directed polymerization into an intermediate form RNA 3. Capable of regulated metabolic activity a. Through macromolecular catalysis 4. Capable of protein synthesis a. The machinery of protein synthesis is conserved among all cells (MOSTLY RNA) b
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Identifying the Unknown Bacteria: Bacillus cereus Brittany Moy Coastline Community College Abstract Bacillus cereus is a Gram-positive‚ facultative aerobic‚ spore-forming‚ rod-shaped bacterium that is widely distributed among the environment. Introduction The reason for identification of unknown bacteria was to help students recognize different bacteria through different biochemical tests and characteristics. This is important in the medical field because identification of unknown bacteria
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neutrons‚ and electrons in atoms‚ ions‚ and isotopes Covalent vs Ionic bonding Reactants vs products Enzymes and activation energy Water’s polarity- cohesion‚ adhesion Heterogeneous vs homogeneous mixtures pH and buffers organic chemistry- proteins‚ carbohydrates‚ lipids‚ nucleic acids (monomers vs polymers‚ examples‚ functions) Unit 3- Cellular Structure and Function (ch. 7) The Cell Theory Microscope diversity Why are cells small? Prokaryotic vs eukaryotic cells Plant vs animal cells- organelle function
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Gram Negative Unknown Lab Report Abstract The Unknown Gram Negative bacterium inoculated in a Tryptic Soy broth medium was randomly selected from a group of other unknowns. In order to identify this unknown the seven different types of biochemical tests will be conducted on this unknown bacterium to identify it out of 6 possible bacteria; Escherichia coli(E. coli)‚ Enterobacter aerogenes (E.aerogenes)‚ Klebsiella pneumoniae (K.pneumoniae)‚ Proteus mirabilis(P.miranilis)‚ Pseudomonas aeruginosa(P
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