nutrition facts label‚ they can tell you the content of fat‚ carbohydrate‚ and protein in the foods they eat. Many participate in low carbohydrate dieting‚ one of the most popular diets around. Others have opted for the United States Department of Agriculture ’s low fat diet‚ but neither understands the chemistry of the body or may have misinformation about these compounds. Not many Americans can tell you confidently what a fat‚ carbohydrate‚ or protein is chemically or how it works in the body. It
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What is metabolism? All living things must have an unceasing supply of energy and matter. The transformation of this energy and matter within the body is called metabolism. Metabolism includes two different types: catabolism and anabolism. Catabolism is destructive metabolism. Typically‚ in catabolism‚ larger organic molecules are broken down into smaller constituents. This usually occurs with the release of energy. Anabolism is constructive metabolism. Typically‚ in anabolism‚ small precursor
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cellular respiration is an example of chemical reactions. Throughout the chapter‚ the cell’s metabolism will be examined to understand how it controls the chemical reactions that take place in the cell. Section 6.1 - An Organism’s Metabolism Affects Energy and Matter The metabolism in cells is responsible for the series of chemical activities that take place in the cell. Metabolic Pathways The metabolism controls the material and energy resources of the cell. Through the
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LAB 2 1.Identify the functional group or molecule for each of the following. (3 points) a.COOH temp b.COH temp c.COH temp 2.List whether each of the following substances was positive or negative for reducing sugar‚ as indicated by the Benedict’s test. (6 points) a.corn syrup (1 point) b.table sugar (1 point) c.unknown 1 (1 point) d.unknown 2 (1 point) e.unknown 3 (1 point) f.unknown 4 (1 point) 3.List whether each of the following substances was positive or negative for starch‚ as
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1 Western Governors University 2 Hereditary Fructose Intolerance Metabolism is the process of cellular respiration. It involves three steps‚ 1) glycolysis‚ 2) the citric acid or Krebs cycle and 3) electron transport system. The glycolytic pathway or glycolysis is a metabolic process that leads to the formation of the energy source adenosine triphosphate (ATP) in the body. ATP is essential to the cell and the cellular processes used by the cell. The first step‚ glycolysis is the process
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to different enzymatic reactions. It is acted by an enzyme (Not specified) and converting it into ribose 5-phosphate. Oxidizing it and making it into ribose 5-phosphate. Ribulose 5-phosphate and xylulose 5-phosphate can later be converted into carbohydrate intermediates (fructose 6-phosphate) which are present in glycolysis. *Main Points in the pentose phosphate pathway (S. 72) G-6-P shunted to PPP PPP leads to production of NADPH and Ribose sugar (ribose 5-phosphate ) NADPH is utilized in many
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about. Using a biology textbook and the resources listed‚ describe what the following molecules are and what they are used for in the human body. List some specific examples of each. Also list major dietary sources of each. a. Proteins b. Carbohydrates c. Fats b) Janine made this statement: “… if your brain doesn’t get carbs—well‚ glucose‚ anyway—you get really cranky. You have to have enough carbs.” Find out if Janine is right. How does the nervous system use glucose? c) Janine also
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Metabolism is the complete and necessary chemical activity carried out by living organisms. This process is carried out in two different ways: anabolic and catabolic. The catabolic breaks down large chemical compounds while anabolic synthesizes components to create larger molecules. Respiration provides energy for these reactions‚ and respiration needs oxygen to occur. Thus‚ calculating the change in oxygen can determine metabolic rate (University‚ 59). In this experiment‚ we will observe and analyze
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Define kinetic and potential energy. (Give biological examples). What are the two laws of thermodynamics? Give examples. What is entropy and what is the law of entropy? How do living things resist the law of entropy? Give biological examples. Define metabolism‚ catabolism and anabolism. What is free energy? What is an exergonic and endergonic reaction? What is G for these two reactions? What are the characteristics of each of these reactions? Define the ATP/ADP cycle. What is a coupled reaction? What
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Muscular System: Muscle Metabolism 1. List the three roles of ATP in muscle contraction: 1. _energizing the power stroke of the myosin cross bridge________________________ 2. _disconnecting the myosin head from the binding site on actin at the conclusion of a power stroke_________________ 3. _energizing the calcium ion pump; transporting calcium___________________ 2. The potential energy in ATP is released when the terminal high-energy bond is broken by a process called _hydrolysis________________________
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