Chapter 1: May/June 06 1 What is the resolution‚ in nanometres‚ of an electron microscope and of a light microscope? A electron microscope 0.5 light microscope 20 B 0.5 200 C 5.0 20 D 5.0 200 2 The diagram shows a drawing of an electron micrograph of a cell. Which structures are surrounded by double membranes? Golgi apparatus lysosome mitochondrion nucleus cytoplasm A ✓ ✓ ✓ ✓ ✓ B ✓ ✗ ✗ ✗ ✗ C ✗ ✗ ✓ ✓ ✗ D ✗ ✓ ✗ ✗ ✓ 3 In which animal cells would Golgi apparatus be most abundant
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Cellular Functions CORE TOPIC 1: CELLULAR FUNCTIONS Learning Outcomes: (a) Describe and interpret drawings and photographs of typical animal and plant cells as seen under the electron microscope‚ recognising the following membrane systems and organelles: rough and smooth endoplasmic reticulum‚ Golgi body‚ mitochondria‚ ribosomes‚ lysosomes‚ chloroplasts‚ cell surface membrane‚ nuclear envelope‚ centrioles‚ nucleus and nucleolus. (b) Outline the functions of the membrane systems and organelles
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glycerol Hydroxypropyl starch Hydroxypropyl distarch phosphate Hydroxypropyl distarch glycerol Starch sodium octenyl succinate Modified starches consist of starch with low to very low level of substituent group. Enzymatic modification of starch is hydrolysis of some part of starch into a low molecular weight of starch called maltodextrin‚ or dextrin using amylolytic enzymes (Miyazaki et al.‚ 2006). They are widely used for food and pharmaceutical industries. Physical modification involves pre-gelatinization
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temperature‚ ph and effect of a competitive inhibitor phosphate ions. This is determined by the reaction of hydrolysis by p-nitrophenylphosphate (PNP) as a substrate by the enzyme phosphatase. Abstract The hydrolysis of p-nitrophenyl phosphate has been studied in human red blood cells. To see if hydrolysis was related to the functioning of the sodium pump. Acid phosphatase catalysis’s the hydrolysis of p-nitophenyl phosphate under four different objectives ph‚ temperature‚ substrate inhibition and a
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water-soluble sodium salt‚ whereas the polymer remains insoluble. This difference can be used to purify the aspirin product. The most likely impurity in the final product is salicylic acid‚ which can be either unconsumed reactant‚ or the result of hydrolysis of the aspirin product. Salicylic acid is removed during the purification steps as well. Salicylic acid‚ like most phenols‚ forms a highly colored complex with ferric chloride‚ and is easily detected. Aspirin does not form the colored complex
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feed properly (“Your Comprehensive Source for BSE Facts”). • Label cattle as “inspected and passed‚” only if they’ve been tested negative for BSE (“Your Comprehensive Source for BSE Facts”). Sources Cited Hudson-Miller‚ D. (n.d.). Dehydration and Hydrolysis. Retrieved January 4‚ 2015‚ from https://docs.google.com/document/d/1qlFyeosYpUSw4gJwgZ3g3XdPu3 _ OuLubIuZlPlDohTc/edit Material Safety Data Sheet. (2005‚ October 10).
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appears as a mucoid in MacConkey agar it’s ferment lactose. According to biochemical tests the klebsiella gave negative result for oxidase‚ indole‚ methyl red‚ hydrogen sulfide‚ phenylalanine‚ gelatin hydrolysis‚ DNase and lipase. On other hand klebsiella gave positive result for citrate‚ urease hydrolysis‚ lysine decarboxalyze‚ acid form lactose‚ acid form glucose‚ acid form sucrose‚ acid form maltose‚ acid form mannitol and nitrate reduction. (1) Klebsiella have no specific growth requirements and
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Food Chemistry 134 (2012) 696–703 Contents lists available at SciVerse ScienceDirect Food Chemistry journal homepage: www.elsevier.com/locate/foodchem Characterisation of calamansi (Citrus microcarpa). Part II: Volatiles‚ physicochemical properties and non-volatiles in the juice Mun Wai Cheong a‚ Danping Zhu a‚ Jingting Sng a‚ Shao Quan Liu a‚ Weibiao Zhou a‚ Philip Curran b‚ Bin Yu b‚⇑ a b Food Science and Technology Programme‚ Department of Chemistry‚ National University of Singapore‚ Science
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It is a very good mechanism for transport since they are highly cohesive 5. Important reagents for chemical reactions ( such as hydrolysis and photosynthesis ) ------------------------------------------------- Carbohydrates Separated into 3 types which are monosaccharides‚ disaccharides and polysaccharides Monosaccharides * they are three main types of monosaccharides which
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Simple lipids are esters of fatty acids with various alcohols. Compound or conjugated lipids are esters of fatty acids containing groups in addition to an alcohol and a fatty acid. Derived lipids are those derived from simple/compound lipids through hydrolysis (Harper et al.‚ 1977). Christie (2010) defined lipids as fatty acids and their derivatives‚ and substances related biosynthetically or functionally to these compounds. In
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