J Appl Physiol 91: 225–230‚ 2001. Gender differences in carbohydrate loading are related to energy intake MARK A. TARNOPOLSKY‚1‚2 CAROL ZAWADA‚2 LINDSAY B. RICHMOND‚2 SHERRY CARTER‚1 JANE SHEARER‚3 TERRY GRAHAM‚3 AND STUART M. PHILLIPS2 1 Departments of Medicine (Neurology and Rehabilitation) and 2Kinesiology‚ McMaster University‚ Hamilton‚ Ontario L8N 3Z5; and 3Human Biology and Nutrition‚ University of Guelph‚ Guelph‚ Ontario‚ Canada N1G ZW1 Received 5 July 2000; accepted in final form 6 April
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Pre-lab 1: Identifying Carbohydrates Abstract The point of this lab is to determine if a substance contains carbohydrates such as a reducing sugar and/or polysaccharides. This will be done by using Benedict’s reagent and Iodine stain tests. Benedict’s reagent will react to reducing substances in the solution by oxidizing it and changing the structure of the reducing sugar to form a colored precipitate. The color of this precipitate can be used to determine the concentration of reducing sugars in
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Cell membranes are a bilayer make up of phospholipids‚ proteins‚ and cholesterol. Its main function is to regulate what comes in and out of the cell by means of diffusion‚ transport proteins and protein channels. Trans membrane proteins transport polar solutes across hydrophobic regions of the bilayer. Diffusion occurs when solutes are transferred from a high concentration of that solute to a lower concentration of solutes. Solutes do not depend on the concentration of other solutes‚ which allows
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Without a good supply of carbohydrates as glycogen in the muscles and liver‚ and frequent supplies with food and drink‚ it reduces the amount of time that can be sustained a moderate or intense physical effort. Who takes part in events that last for over an hour must pay particular attention to supply meals and snacks rich in carbohydrates. Dehydration impairs performance and athletes should not lose more than 2% of body weight during
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The aim of the experiment is to investigate the effects of carbohydrate receptors in the mouth on exercise performance during a simulated time trial. Energy is required in the body for metabolic processes‚ physiological functions‚ muscular activity‚ heat production‚ growth and synthesis of new tissues. Carbohydrates have been researched and studied for centuries and are commonly viewed as a substrate for fuel metabolism‚ associated with many other energy-demanding processes. There has been extensive
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low fat or reduced fat. The Atkins diet plan‚ which is a low-carbohydrate diet‚ is a very popular diet. Many people have lost a lot of weight with this diet. It was stated in a Diabetes Forecast article‚ Researchers at Stanford University made a splash in the diet and nutrition world last March when they reported that in a 1-year study of 331 women‚ participants lost more weight on the controversial low-carbohydrate Atkins diet than popular rivals such as the Zone‚ Ornish‚ or
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We have four important macromolecules; carbohydrates‚ lipids‚ proteins‚ and nucleic acids. From these four‚ the macromolecule I chose for this assignment was carbohydrate. Carbohydrates branch off into three main categories; monosaccharides‚ disaccharides‚ and polysaccharides. I decided to focus on disaccharides‚ specifically sucrose. Sucrose is more commonly known as table sugar. It has a chemical formula of C12H22O11. It is physically described as a white‚ odorless (although when heated‚ it may
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Compare the Rate of Carbon Dioxide Production by Yeast under Anaerobic Conditions using different Carbohydrate Substrates. Hypothesis. The hypothesis that I draw is that "" out the five carbohydrate substrates that I will use‚ Glucose will produce the highest volume of Carbon Dioxide at every five-minute interval. Null Hypothesis. The null hypothesis that I am composing is that "" the five carbohydrate substrates that I am to use will not produce any Carbon Dioxide. Scientific Research. Under anaerobic
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1) Homeostasis is the condition in which the body maintains a. changing state‚ within an unlimited range. b. an equilibrium point that can change over a narrow range that is compatible with maintaining life c. an equilibrium change that balances external and internal environment such that values of each are equated 2) Anabolism is the a. breakdown of matter. b. expulsion of matter. c. synthesis of matter. d. All of the answers are correct. 3) The sum
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organic molecules are carbohydrates‚ lipids‚ and proteins. Carbohydrates contain carbon‚ hydrogen and oxygen with a ratio of 1:2:1‚ this means that for every 2 hydrogen atoms there is one carbon atom and one oxygen atom. They are necessary for the body to function properly because they provide the fuel that burns to produce energy. Carbohydrates come in the class of either a monosaccharide‚ disaccharide‚ or polysaccharide. Monosaccharides are the simplest form of a carbohydrate‚ disaccharides are made
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