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 and other beverages. Pectin is the substance that holds together plant cells
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Biology Laboratory Report Practical 4 Food tests Introduction The main components of food are proteins‚ fats‚ carbohydrates‚ and‚ of course‚ water. Proteins‚ lipids and carbohydrates are carriers about energy necessary for vital activity. They are a plastic material for the formation of structures of the body‚ as well as used for the synthesis of hormones and substances that transmit signals in the nervous system. Our food also includes food (plant) fibers‚ has recently seemed unnecessary ballast
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Origin of Eukaryotes * The origin of eukaryotes is important to understand the origin of modern complex cells. There are three main separate theories that hypothesize the origins: the three-domain system‚ eocyte theory‚ and endosymbiosis. Each one have there own merits and evidence supporting. These theories suggest the evolution of cells from the most primitive prokaryotes‚ unicellular organism having cells lacking membrane-bound nuclei‚ to the most complex eukaryotes‚ single or multicellular
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EXTRACTION OF DNA FROM ONIONS ABSTRACT The purpose of the experiment was to experience firsthand the isolation of DNA form a plant tissue without destroying its structure and sequence. A white onion was used for the experiment. After several processes‚ DNA isolate was the visible result. Different chemical tests were performed on the DNA isolate‚ namely: Dische Test‚ Murexide Test‚ Wheeler-Johnson test and Test for Phosphate. Visible results were then noted. INTRODUCTION DNA (deoxyribonucleic
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needed for E-speed film than D-speed film. A double-film packet contains the same articles as a regular film packet‚ but has two films in it. After radiation and processing‚ two films are available for viewing. “X-ray film is composed of a clear cellulose acetate film base that is coated with an emulsion of silver halide (usually silver bromide) grains suspended in a layer of gelatin. The emulsion with its protective coating is attached to the acetate base by an adhesive” (Frommer‚ p.
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Topic 9: Plant Science 9.1 Plant Structure and Growth 9.1.1 Draw and label plan diagrams to show the distribution of tissues in the stem and leaf of a dicotyledonous plant. Cross-section of a stem Part of plant | Purpose | Epidermis | Surface of the stem made of a number of layers often with a waxy cuticle to reduce water loss | Cortex Tissue | Forming a cylinder of tissue around the outer edge of the stem. Often contains cells with secondary thickening in the cell walls which provides
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Sandipan Ghosh +91-9867043418 sandipan.ghosh14@yahoo.com Masters of Fashion Management‚ NIFT Mumbai SUSTAINABILITY IN TEXTILES INTRODUCTION TO SUSTAINABILITY According to the United States Environmental Protection Agency (EPA) the principle of sustainability states that our natural environment is the driving force behind our survival. It is this principle that ensures that humans and nature can co-exist harmoniously with each other. This permits fulfillment of social‚ environmental
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* PLASTIC POLLUTION | | 0.0 (0) | Written by rashmi October 06‚ 2010 Hits: 368 0 Cash Credits: 25.00 Editor: Deepti The pollution that is caused by organic polymer materials such as plastic on the environment thereby having harmful effect on human being is known as plastic pollution. Plastic mainly can be divided in two broader classifications namely. * Thermoplastics * Thermosetting plastics Both these varieties of plastics are not biodegradable that cannot
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starch(plants)‚chitin(exoskeletons) 2. storage and sugar release-cellulose‚ c. How are starch and glycogen similar? d. How are starch and glycogen different? e. Where do plants store starch in their cells?-plastids f. Where do Humans and most vertebrate animals store glycogen?-liver and muscle cells g. How do alpha and beta glucose differ? Why is this significant to animals?- i.How is chitin different from cellulose?-chitin has a nitrogen containing appendage j. Where can
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DEPARTMENT OF PURE AND APPLIED CHEMISTRY Visayas State University‚ Baybay City‚ Leyte CHEM31a – BIOCHEMISTRY Laboratory Report Name: Alyssa Diane Marie L. Baljon Date Performed: May 7‚ 2015 Course & Year: BSChem 2 Date Submitted: May 11‚ 2015 Lab Schedule: M-F 7:00-10:00 Score: Group No. 4 Experiment No. 3 Carbohydrates Objectives Use of chemical tests to identify some physical and chemical characteristics of typical carbohydrates. Differentiate between monosaccharides‚ disaccharides
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