c. stomach d. pancreas 2. What part of the digestive system where mechanical digestion happens? a. mouth b. rectum c. stomach d. esophagus 3. The throat is divided into two separate tubes: the trachea and the esophagus. Which of the organs prevents food from entering the trachea? a. The uvula b. The tongue c. The trachea d. The epiglottis 4. What is the main functions of the digestive system? a. ingestion and digestion
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ANAEROBIC DIGESTION ON BIODEGRADABLE WASTE FOR METHANE GAS CAPTURE BIODEGRADABLE WASTE: Biodegradable waste is a type of waste‚ typically originating from plant or animal sources‚ which can be decomposed by other living organisms. Biomass‚ manure‚ sewage‚ municipal waste‚ green waste and plant materials are some of these common biodegradable waste. ANAEROBIC DIGESTION: This is a series of biological processes in which microorganisms breakdown biodegradable materials in the absence of oxygen
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aims to produce biodegradable plastic using cassava starch as its main component. Cassava starch was mixed with water‚ epoxydized soya bean oil (ESBO)‚ glycerol‚ and polyvinyl alcohol (PVA). The mixture was then compressed and tested. Three preparations were made from the mixture. The first preparation contained 50 grams starch‚ 50 grams water‚ 50 grams PVA‚ 2.5 grams ESBO‚ and 2.5 grams glycerol. The second preparation contained 65 grams starch‚ 65 grams water‚ 50 grams PVA‚ 2.5 grams ESBO‚ and 2
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Introduction: With the execution of this experiment‚ we began to go deeper into the Cell and Molecular Biology course. The main focus of the experiment would be how the Restriction Endonucleases cleave the strands of DNA. For this experiment‚ pBR322 was the specimen to use. Restriction Endonucleases work by cleaving the sugar phosphate backbone of specific DNA sites. Restriction enzymes that have been isolated from bacteria have a defensive role. This idea is illustrated when an attacking foreign
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A Case of Acute Pancreatitis by David F. Dean Department of Biology‚ Spring Hill College NATIONAL CENTER FOR CASE STUDY TEACHING IN SCIENCE Case Presentation George Hendrix is a 38-year-old man who has abused alcohol his entire adult life. Recently‚ following an episode of binge drinking‚ George experienced a gradual onset of pain in his upper abdomen that radiated to his back. The pain persisted for several hours and worsened each time that he ate. He also felt nauseous and experienced repeated
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Title: Cassava starch as an effective component for Ideal Biodegradable Plastic Proponent: Zhaira Morysette L. Maco‚ III-Narra student Introduction: Inventions have evolved and continue to evolve such that after several years of study‚ research and experimentation reach great developments. With continuing efforts to investigate the constituents of Philippine plants‚ we have pursued investigation of starch of the cassava plant (Manihot esculenta). Cassava tubers were gathered‚ ground and squeezed
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The main structural difference between starch glycogen cellulose comes from? In: Human and Animal Interaction Starch‚ glycogen and cellulose are all polymers of glucose. They differ in the type of glucose present and the bonds which link thr glucose monomers together. Starch and glycogen are made from alpha-glucose. This is an isomer of glucose in which the hydroxyl (-OH) group attached to carbon number 1 is below the plane of the ring. Starch is itself composed of two types of polymer:amylose
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AN INVESTIGATION TO FIND THE EFFECT OF BILE SALTS OF ON THE DIGESTION OF LIPIDS I have investigated that if there is an effect of bile salts on the digestion of lipids in the milk. When lipids are broken down in to fatty acids and glycerol (see below)‚ the acid lowers the pH of the mixture. To help me determine and measure the digestion of lipids‚ a pH indicator phenolphthalein has been used to measure the pH of the mixtures. The pH indicator will change the colour from pink to either white (if
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REFERENCE ID: 201002578 TITLE SCREENING PREGNANT WOMEN FOR PERIODONTITIS BY ANALYSING SALIVARY ALKALINE PHOSPHATASE AND LACTATE DEHYDROGENASE INTRODUCTION Periodontal disease can induce systemic inflammatory and immune responses and may be associated with an increased risk of systemic diseases such as cardiovascular disease and rheumatoid arthritis.1–3 Periodontal disease is common in pregnant women4 and increases the risk of adverse pregnancy outcomes including preterm birth‚ low birth weight
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Describe how the uses of plant fibres and starch may contribute to sustainability How can plant fibres be used? First of all the plant fibres have to be extracted from the plant itself. The process of extraction often used is called retting. Retting involves using water or micro-organisms to dissolve or rot away the cellular tissues surrounding the bast-fibre bundles. Afterwards the fibres are obtained; usually they extract very long sclerenchyma cells and xylem tissue because of their good
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