Aim: The aim of this experiment was to investigate the effect of different amounts of a substrate on the respiration rate of yeast and to compare this to the effect of different amounts of glucose on the rate of yeast respiration. The substrate which I chose to further investigate was fructose. Fructose is a fruit sugar which is one of the three‚ along with glucose and galactose‚ dietary monosaccharides that are directly absorbed into the bloodstream during digestion. Materials: 2% yeast
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essential carbohydrates needed for athletes‚ and the effects of consuming carbohydrates before and during competition is very important in helping with the enhancing of an athlete’s endurance and his or her exercise performance. It is critical for athletes to ingest a significant amount of carbohydrates in their bodies in order to compete at high performance levels. Carbohydrates are the main fuel source for our body‚ but as athletes we must know the difference between good and bad carbohydrates. Good
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Temperature and Yeast Fermentation Introduction: Saccharomyces cerevisiae‚ commonly known as baker’s yeast‚ is an key ingredient used mainly when baking bread or making alcoholic beverages. The main role of the yeast is to convert the sucrose into carbon dioxide (CO2) and ethanol. For example‚ when baking bread‚ the yeast ferments the sucrose within the dough and so CO2 and ethanol is released‚ causing the bread to rise and expand. It does this using enzymesAlso‚ during this fermentation process‚ because
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Carbohydrate and Diabetes Research NUR 115 AM The articles that I researched for this project were interesting and shed light on the relationship between carbohydrates and diabetes. Some of the information that I learned will be useful in my nursing career. Carbohydrates fill numerous roles in living things‚ such as the storage and transport of energy in the form of starch and glycogen etc. The basic carbohydrate units are called monosaccharides‚ such as glucose‚ galactose‚ and
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substitutes; fats; free foods; combination foods; fast foods; and alcohol. Carbohydrate Counting When you eat a healthy meal or snack‚ it is usually a mixture of carbohydrate‚ pro- tein‚ and fat. However‚ your body changes carbohydrate into glucose faster than it changes protein and fat into glucose. It is the carbohydrate that makes your blood glucose level go up. In carbohydrate counting‚ you count foods that are mostly carbohydrate. These include starches (breads‚ cereals‚ pasta)‚ fruits and fruit
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QUALITATIVE TESTS OF CARBOHYDRATES Final Lab Report Submitted by Brittany Fitzgerald 545301 Prepared for Nancy Cook Chemistry 3501 Monday November 26‚ 2012 RESULTS PART A: As a result of the Benedict’s test on various sugar solutions‚ it was found that galactose‚ mannose‚ arabinose‚ ribose‚ lactose‚ fructose‚ maltose‚ and cellobiose tested positively and therefore are considered reducing sugars. Glucose‚ starch‚ sucrose‚ and methyl-D-glucopyranoside on the other hand tested
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Title: Observations of Chemical Changes Purpose: To learn about the international system of units (SI)‚ to become familiar with common lab equipment and techniques‚ to gain proficiency in determining volume‚ mass‚ length‚ and temperature of a variety of items using common laboratory measurement devices‚ to learn to combine units to determine density and concentration‚ and to use laboratory equipment to create serial dilutions and determine the density and concentration of each dilution. Procedure:
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serving of whole grain in every meal. Carbohydrates get a very bad rep because people assume that carbohydrates make you fat. The bad rep on carbohydrates may play a role in why the amount of fiber consumed in an individual’s diet is very
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Experiment No. 7 HYDROLYSIS AND ANALYSIS OF CARBOHYDRATES Methodology Materials: |1% solutions: | conc. H2SO4 | |glucose‚ fructose‚ maltose‚ sucrose‚ lactose‚ |Molisch reagent | |agar-agar‚ gum arabic‚glycogen‚ cotton‚ |I2 in KI solution (Lugol’s
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with discretion; opt for carbohydrates with a low glycemic index (GI). GI is the property of a carbohydrate to be converted into blood sugar. A low GI indicates that a carbohydrate takes longer to be converted to sugar‚ thus implying that it is contains insoluble fiber that is tougher to break down (that’s good news‚ intestines need some exercise too). While consuming carbohydrates‚ watch out for the glycemic load (GL) too. Glycemic load accounts for how much carbohydrate is in the food‚ and how much
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