ABSTRACT The hypothesis which states that the simpler the nature of substrate‚ the faster the rate of cellular respiration of yeast was tested using the smith fermentation tube method. The experiment used six smith fermentation tubes‚ distilled water and sugar substrates. It composed of six set-ups which used 15ml of 10% yeast suspension‚ 15 ml distilled water and 15 ml of their assigned sugar substrate namely: starch‚ lactose‚ sucrose glucose and fructose respectively. Set-up six was the
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test compare to disaccharides and polysaccharides which will react slower. Therefore‚ the
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CARBOHYDRATES 1322 Classification • Simple carbs consist of 1 or 2 sugar units • Monosaccharides • Glucose‚ fructose‚ galactose • Disaccharides • Sucrose‚ lactose‚ maltose • Oligosaccharides consist of 3-10 sugar units • Not a simple or a complex carb • Complex carbs consist of 10 + sugar units • Polysaccharides • Starch and fiber Monosaccharides 6 carbons= hexose Monosaccharides • Glucose • Most abundant carbohydrate • Preferred source of energy for the RBC‚ brain‚ and nervous system
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Benedict’s solution can be used to distinguish between monosaccharides and disaccharides. Why? Monosaccharide will change the benedict’s solution from blue to orange when heated. Disaccharide will not change the benedicts change the color. 1. Benedict’s solution cannot be used to distinguish between two monosaccharides. Why? The two monosaccharides bonded together and formed an disaccharide. Thus the disaccharide will not change the color. Experiment 2: Starch Test 1. Fill in the table
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Structure and function of macromolecules within a living organism ‘Some biological molecules in organisms are small and simple containing only one or a few functional groups‚ others are large‚ complex assemblies called macromolecules’ [1]. The term macromolecule is convenient because the bulk properties of a macromolecule differ from those of smaller molecules. These large chemical compounds have a high molecular weight consisting of a number of structural units linked together by covalent
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Quiz 1 Study Guide: Fall 2013 1. Know how to read a food label. There will be questions asking you to apply that knowledge‚ not just show that you memorized it. 2. How many calories per gram of CHO‚ fat‚ and protein? CHO: 1gram=4 calories Fat: 1gram =9 calories Protein: 1 gram=4 calories 3. What are the stages of change from the Transtheoretical Model of Change? Know the order they come in and the characteristics of each stage. Precontemplation (Not Ready)-"People are not intending
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In this assignment I will explain the physiology of two named body systems in relation to energy metabolism in the body. I will be explaining two body systems these are Respiratory system and Digestive system. Energy According to Wright (2007)‚ we need energy for everything we do. Energy can be found in different forms including chemical energy‚ electrical energy‚ thermal energy‚ radiant energy‚ mechanical energy and nuclear energy. We use energy all the time including when we are sleeping. We
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As we can see on the graph we can tell how clearly glucose has highest respiration rate of 455 ppm/min. Sucrose is second with 391 ppm/min‚ then fructose with 231 ppm/min and lastly lactose with 92 ppm/min. We can see a clear trend‚ that glucose had the highest rates and that lactose was the lowest‚ so we see a clear downwards sloping trend‚ which was also expected. This suggests that yeast respires best with glucose instead of sucrose fructose or lactose. To explain this process‚ we must first understand
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Carbohydrates Consists of CnH2xOx • Include sugars • Classified into groups based on the number of carbon atoms per molecule. • Classes of Carbohydrates o Monosaccharides ▪ Simple sugars o Disaccharides ▪ Compound sugars o Polysaccharides ▪ Complex sugars a. Monosaccharides • Simple sugars • Contain about 3 to 6 carbon atoms per molecule o Trioses
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BACKROUND INFORMATION Organic chemistry is the study of hydrocarbons and their various deviations. (Ex. natural gas‚ paper‚ proteins‚ carbohydrates) Saturated hydrocarbons are hydrocarbons with carbon-carbon single bonds. (Ex. C-C) Unsaturated hydrocarbons are hydrocarbons with one of more multiple carbon-carbon bonds. (Ex. C=C double bond‚ triple bond‚ or both) Stereoisomers have the same molecular and structural formulas but different orientations of atoms in space. Constitutional isomers
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