3.2 syllbus 3.2.1 ~Organic compounds contain carbon and usually hydrogen. ~Inorganic compounds do not contain carbon and hydrogen. 3.2.2 ~ Glucose Fatty Acid 3.2.3 Monosaccharide ~-the basic unit of carbohydrates -the simplest form of sugar -Glucose‚ Galactose‚ Fructose ~disaccharides have the chemical formula C12H22O11‚ consist of two monosaccharides which are joined by the process of dehydration synthesis (during while a molecule of water is formed) -Maltose‚ Lactose‚ Sucrose
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Review Questions 1.7 1. Outline four ways in which the size of a market can be measured. Growth of a business refers to the expansion in size of its operations and this can be measured in several ways‚ including: * The value of the firm’s sales turnover (also known as the sales revenue) * The firm’s market share‚ i.e. the sales revenue of the business as a percentage of the industry’s sales * The value of the firm’s capital employed * The number of employees hired by the business
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ROLE OF NEUROTRANSMITTERS IN LEARNING AND MEMORY – Martinez and Kesner (1991) Aim: determining the role of the neurotransmitter acetylcholine on memory Method: * Rats were trained to go through a maze and get to the end‚ where they received food * Researcher injected one group of rats with scopolamine (blocks acetylcholine receptor sites thus decreasing available acetylcholine) * Injected second group of rats with physostigmine (blocks the production of cholinesterase – cholinesterase
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In the 1920’s‚ my ideal date would take place in New York City‚ and would start around noon and probably end sometime in the late night. First‚ I picked up my date at her parent’s house. She had a nice picnic lunch packed‚ and we were going to walk to Central Park. The picnic consisted of dry sausage‚ prosciutto‚ and a mixture of olives‚ an assortment of cheeses‚ some tomatoes in olive oil‚ and a loaf of Italian bread. It was a long walk to Central Park‚ but we were hungry‚ and we knew that once
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Biology Enzymes IA Design Introduction: Enzymes are globular proteins‚ they are responsible for most of the chemical activities of a living organism. They act as catalysts‚ substances that affects the reaction of other substances without being destroyed or altered during the process. They are extremely efficient in the body system of living organisms‚ one enzyme may catalyse over a thousand chemical reactions every second. But there are certain conditions that need to be fulfilled in order for the
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• The equilibrium law DYNAMIC EQUILIBRIUM forward A +8 reaction ""r=====~’~ reverse reaction Most chemical reactions do not go to completion. Once some products are formed the reverse reaction can take place to reform the reactants. In a closed system the concentrations of all the reactants and products will eventually become constant. Such a system is said to be in a state of dynamic equilibrium. The forward and reverse reactions continue to occur‚ but at equilibrium
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TOPIC 6‚ 11‚ & OPTION H: HUMAN HEALTH AND PHYSIOLOGY Digestive System Includes all the structures that are concerned with bringing food into the body to provide for the needs of the body’s cells. Each cell in an organism relies on a continuous expenditure of energy. Fats‚ carbs‚ and proteins are broken down during cellular metabolism and the energy derived from them is used to make ATP. The digestive system deals with: Ingestion‚ which is the bringing of nutrients into the body. Mechanical
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Original Article EDITORIAL Airlines‚ Emissions and Europe’s Sensible Plan Published: February 26‚ 2012 The carbon dioxide from airplanes accounts for about 3 percent of the world’s greenhouse gas emissions‚ a share projected to go up as air traffic rises. The European Union is now requiring airlines that fly into or out of Europe to pay a fee for these emissions. This is a smart response to an urgent problem. The United States and the other nations opposing the program should either come
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English Exposition Whale hunting must be stopped! Imagine your swimming in the ocean‚ minding your own business. Then‚ suddenly‚ something sharp hits you. It enters your body and explodes. The pain is killing but it does not kill you‚ not yet. Again a sharp object hits you and explodes. Again and again you are hit. Your enormous body‚ however‚ does not give up that easily. It will take more than a half an hour to get unconscious. Maybe‚ if you are lucky‚ you will drown. Perhaps you will be dragged
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p IB DIPLOMA PROGRAMME PROGRAMME DU DIPLÔME DU BI PROGRAMA DEL DIPLOMA DEL BI Biology Higher level and standard level Specimen paper 1s‚ 2s and 3s For first examinations in 2009 http://www.xtremepapers.net CONTENTS Biology higher level paper 1 specimen paper Biology higher level paper 1 specimen markscheme Biology higher level paper 2 specimen paper Biology higher level paper 2 specimen markscheme Biology higher level paper 3 specimen paper Biology higher level paper 3 specimen markscheme
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