see sugars exist in linear forms 4. Tend to form rings in aqueous solution 5.2 Structure of Polysaccharides 1. Polysaccharides a. Polysaccharides – polymers formed when monosaccharides are linked together i. Disaccharide - simplest polysaccharide of two sugars b. Simple sugars polymerized through condensation reactions between two hydroxyl groups‚ forming a glycosidic linkage through a covalent bond c. Since glycosidic linkages form between hydroxyl
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this means there is lipids present in this test. For the Benedicts test if the substance turns from a blue liquid to a greenish to yellow/orange/red shows the presence of a reducing sugar. BENEDICT’S TEST Introduction: Monosaccharaides and disaccharides can be detected because of their free aldehyde groups‚ thus‚ testing positive for the Benedict’s test. Such
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Food Processing in Human Body System. Foods are very important to human body. According to Vittadini et al. (2001)‚ foods provide energy that isneeded for human in order to do daily activities. Besides that‚ food is important for growth and it supplies vitamins and minerals to repair any damage in human skin and also prevent the body to get illnesses easily (Vittadini et al.‚ 2001). Human body cannot use food that they eat directly until it is broken down into small molecules(Campbell et al
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The Nature of biology and science Cell theory: * All organisms are made of cells and the products of cells * All cells come from pre-existing cells * The cell is the smallest organisational unit Cells have an outer membrane‚ encloses fluid contents of cell (cytoplasm) Robert Hooke (1665): observed dead cells from bark Anton van Leeuwenhoek: described living cells Matthias Schleiden: plant issues Theodor Schwann: animal tissues Bacteria found without nucleus and lacking other membrane-bound
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1. INTRODUCTION 1.1 ENZYMES THE ENZYMES SPEAK!! “We are the catalysts of the living world! Protein in nature and in action specific; rapid and accurate; huge in size but with small active centres; highly exploited for disease diagnosis in lab centres”. DEFINITION Enzymes may be defined as biocatalysts synthesised by living cells. They are protein in nature (exception RNA acting as ribozyme) colloidal and thermo-labile in character and specific in their action. HISTORICAL BACKGROUND In
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Practical 3 Investigation of Action of Saliva and Hydrochloric Acid in Two Carbohydrate Solution | Objective: 1. To show the action of saliva in two carbohydrate solutions. 2. To show the action of hydrochloric acid in two carbohydrate solutions. Apparatus & Equipment’s: Boiling tubes Metal test tube racks Beaker Graduated plastic dropper Water bath‚~37°C Water bath‚~95°C Stop watch
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Lab 04: Sugar Respiration in Yeast Sugars are vital to all living organisms. The eukaryotic fungi‚ yeast‚ have the ability to use some‚ but not all sugars as a food source by metabolizing sugar in two ways‚ aerobically‚ with the aid of oxygen‚ or anaerobically‚ without oxygen. The decomposition reaction that takes place when yeast breaks down the hydrocarbon molecules is called cell respiration. As the aerobic respiration breaks down glucose to form viable ATP‚ oxygen gas is consumed and carbon
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Carbohydrates‚ lipids and proteins 3.2.1 Distinguish between organic and inorganic compounds (2). Distinguish means to give the differences between two or more different items. Organic compounds are based on carbon and are found in living things. There are a number of exceptions including hydrogen carbonate (HCO3- )‚ carbon dioxide (CO2 )and Carbon monoxide (CO). Inorganic compounds are by default all the molecules other than those in the category above. Identify amino acids‚ glucose
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The scientific Method 1. Scientific Method- scientific investigation involving the observation of phenomena‚ the formulation of a hypothesis concerning the phenomena‚ experimentation to demonstrate the truth or falseness of the hypothesis‚ and result that validates or modify the hypothesis. Mechanist- Has belief that only natural forces govern living things‚ along with the rest of the universe. Vitalist- believes that the universe is at least partially governed by supernatural powers. Cause
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A molecule of water consists of one oxygen and two hydrogen atoms joined by covalent bonds. Water as a liquid is vital to existence and plays extremely important roles in many aspects of both plant and animal lives. These aspects include temperature control‚ support‚ chemical reactions‚ transport and protection. Without the ability to control our temperature‚ we as humans would not be able to survive in our natural environment. If our internal body temperature was to rise or fall even a few degrees
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