strength of the color additive. Color additives are available for use in food as either "dyes" or "lakes". Dyes dissolve in water‚ lakes are the water insoluble form of the dye‚ are more stable than dyes‚ and are ideal for coloring products containing fats and oils. Allura Red AC is a red azo dye that goes by several names including: Allura Red‚ FD&C Red 40 and disodium 6-hydroxy-5-((2-methoxy-5-methyl-4-sulfophenyl)azo)-2-naphthalene-sulfonate. It is used as a food dye and has the appearance of a
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PhysioEx Lab Unit 1 Print Options This box will be automatically hidden when printing. ← Back to Set Page Alphabetize terms Flip terms and definitions 2hr OGTT level aboe 200mg/dl: confirms diabetes dx 2hr. OGTT level b/w 140-200mg/dl: impaired glucose tolerance absolute refractory period: period when cell membrane is totally insensitive to additional stimuli‚ regardless of the stimulus force applied. ACTH: hormone released by the anterior pituitary. stimulated by a hypothalamic hormone
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Phospholipids are made up from many smaller molecules combine these are: fatty acid chains‚ glycerol‚ phosphate and choline. Two of the carbons of the glycerol are joined to two fatty acids in a condensation reaction creating ester bonds. The final carbon is bonded to the phosphate molecule‚ which in turn is connected via a covalent bond to choline. Due to the polar nature of the glycerol phosphate and choline molecules‚ they create a hydrophilic area (known as the hydrophilic head). Whereas‚ the
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Physiology & Anatomy Lab SC 145L Anatomy & Physiology I Lab Chemical and Physical Processes of Digestion Introduction: In this lab‚ we will see how different chemical processes occur as we observe how different enzymes digest different substrates and produce subunits. Key Terms: (found in bold in Lab Manual) Please define all bold terms in your own words: Enzymes- Large protein molecules made by your body cells. Catalyst- Without becoming part of the substance it will change the rate
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References: http://webs.mn.catholic.edu.au/physics/emery/measurement.htm#Measurement http://www.digipac.ca/chemical/sigfigs/experimental_errors.htm http://www.tsb.gc.ca/eng/rapports-reports/rail/2011/r11v0057/r11v0057.pdf
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assist life. This occurs because of enzymes‚ because all reactions would take place too slowly to sustain life (Jacklet‚ 237). Enzymes are large protein molecules that catalyze specific chemical reactions without being used up in the process. Each enzyme has a region on its surface‚ called the active site‚ which recognizes a specific substrate molecule. The substrate is chemically attached to the active site and binds an enzyme-substrate complex. With the use of a spectrophotometer‚ the absorbance
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No Sugar No Sugar (1986)‚ a play exploring the treatment of Aboriginal people in the 1930’s‚ was written by Jack Davis‚ an Aboriginal Western Australian who grew up in Yarloop and the Moore River Settlement. No Sugar is told from the point of view of an Aboriginal family who are coerced into living at an Aboriginal reserve because the white people in their community didn’t like them living close to them. The authority at the settlement are very abusive creating conflict between the Millimurra family
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"18. Dehydration of 2- Methylcyclohexanol." Organic Chemistry Lab 2040L. XU Chemistry‚ n.d. Web. 12 Feb. 2013. 2. "Material Safety Data Sheet 2-Methylcyclohexanol." Http://www.coleparmer.com/Assets/Msds/97403.htm. Coleparmer‚ 19 Mar. 1998. Web. 12 Feb. 2013. 3. "Material Safety Data Sheet Methylcyclohexane." Sciencelab.com. Science Lab‚ 09 Oct. 2005. Web. 12 Feb. 2013. 4. Helmenstine‚ Anne M.‚ Ph.D. "How to Write a Lab Report." About.com Chemistry. About.com Guide‚ n.d. Web. 23 Feb. 2013
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energy for specific reactions and shapes. Activation energy is required to start a chemical reaction. This occurs when energy is added to reactants. Amino acid chains are made up by their unique folds which results in formation. Since enzymes are proteins‚ each one consists of its own amino acid in a specific order. Since hydrogen bonds are weak‚ they form between amino
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BIO 211 Lab Section 11 February 15‚ 2012 Effects of Temperature on Enzymatic Activity Abstract Temperature is a measure of kinetic energy. As this movement increases‚ collision rate and intensity‚ and therefore reaction rates‚ increase. This experiment was conducted to determine if there is a minimum temperature that increase kinetic energy and denature enzymes to slow enzymatic reactions or fail to catalyze them. The experimental results indicate an increase in temperature will increase reaction
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