water molecules together‚ therefore giving water the properties of cohesion and adhesion – leaves pull water upwards from the roots through the xylem. Hydrogen bond Hydrogen Bonding In Cellulose: Cellulose is a polysaccharide and consists of linear chains of beta-glucose residues with the OH (hydroxyl) group pointing upwards and some pointing downwards. Individual cellulose chains are bound to each other by hydrogen bonds in order to form microfibrils which associate
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active site of the enzyme. the enzyme then speeds up the chemical reactions on the substrate (kind of like a catalyst). a catalyst is any substance which makes a chemical reaction go faster. Cellulose is an organic compound and is a polysaccharide. it is also found in plant cells (especially in the cell wall of the plant cell) . cellulase‚ on the other hand is an enzyme that catalyzes the hydrolysis. cellulase also splits cellulose and can feed additives‚ production of juices
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CLC108/CLB108 Tutorial #1 1. 2. Define Cell Theory. Discuss the similarities & differences between prokaryotes & eukaryotes‚ with diagrammatic illustrations. Discuss the similarities & differences between plant & animal cells‚ with diagrammatic illustrations. Describe the Davson-Danielli model of plasma membrane with diagrammatic illustration. State the function(s) of the following cell organelles: (a) (b) (c) (d) (e) (f) 6. Golgi complex Mitochondria Smooth ER Rough ER Ribosomes Lysosome 3.
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laboratory techniques‚ such as handling the reagents‚ using Gilson pipettes etc‚ study and try to identify chemical tests for food compounds. Materials and methods Reagents Monosaccharaides (glucose‚ fructose‚ maltose)‚ sucrose (disaccharide) Starch (polysaccharide)‚ egg albumin (protein) DCPIP‚ Vitamin C Olive oil + Sudan III Ethanol (highly flammable) Iodine solution (irritant) Benedicts reagents KOH + CuSO4 HCl (irritant) Honey solution Apple juice solution Milk solution Precautions Gloves Safety goggle
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Hydrocarbon – Alcohols • Ethanol - 92.3% by weight of ethanol‚ 94.9% by volume. - 70 % which is used as local antiinfective • Diluted Alcohol - 48.4 % to 49.5% used as solvent • Brandy - distillation from wine • Whisky - fermented malted grain • Rum fermented molasses Product of Reductive Metabolism • Mannitol • Ash Manna • Fraxinus ornus – Oleaceae • Osmotic diuretic • Laxative Product of Reductive Metabolism • Sorbitol- Mountain ash • Sorbus aucuparia Rosaceae • Half as sweet as
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Name_______________________Period___________ Chapter 6: A Tour of the Cell Concept 6.1 Biologists use microscopes and the tools of biochemistry to study cells 1. The study of cells has been limited by their small size‚ and so they were not seen and described until 1665‚ when Robert Hooke first looked at dead cells from an oak tree. His contemporary‚ Anton van Leeuwenhoek‚ crafted lenses and with the improvements in optical aids‚ a new world was opened. Magnification and resolving power limit
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T. Kolusheva‚ A. Marinova Journal of the University of Chemical Technology and Metallurgy‚ 42‚ 1‚ 2007‚ 93-96 A STUDY OF THE OPTIMAL CONDITIONS FOR STARCH HYDROLYSIS THROUGH THERMOSTABLE α - AMYLASE T. Kolusheva‚ A. Marinova University of Chemical Technology and Metallurgy 8 Kl. Ohridski‚ 1756 Sofia‚ Bulgaria E-mail: e-mail: manahova@abv.bg. Received 10 July 2006 Accepted 12 November 2006 ABSTRACT The present work determines the optimal conditions for starch hydrolysis by thermostable
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common senses Flavors‚ aromas‚ and chemical signals released from animals can make the mouth water‚ evoke vivid memories‚ and perhaps even signal stress or fertility. How does the brain sort it all out? Salt! &! Sugar" 1 Salt " • Table Salt – Sodium Chloride (may include • Kosher Salt – Large grain salt (sodium • Sea Salt – mixture of salts found in common sea water" chloride)" some additives like Iodine)" Salt substitutes " Salt substitutes are low-sodium table salt alternatives
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SBI3UE Examination Notes By: Gursangat Sidhu and Derek Meng Unit 1 - The Cell Unit 2 - The Chemical Basis of Life Part 1 - Molecules of Life Part 2 - DNA Replication and Protein Synthesis Enzymes DNA Structure DNA Replication Protein Synthesis Overview Transcription Translation Mutations Part 3 - Cellular Respiration and Photosynthesis Unit 3 - Genetics Unit 1 - The Cell Cell Theory: Cell theory: refers to the idea that cells are the basic unit of structure in every living thing. It states
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VACOMYCIN-RESISTANT ENTEROCOCCI (VRE) IN THE AUSTRALIAN HEALTH-CARE SECTOR This essay will look at Vancomycin-resistant enterococci and what it is. Why has Vancomycin become resistant? Vancomycin use of for medical treatment‚ transmission of and risks to acquiring VRE infections in the Australian health-care sector. Recommended precautionary measures used to prevent the spread of VRE amongst patients and health-care workers in the workplace. Why is it becoming more prevalent in Australian health-care
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