Discussion The primary purpose of this experiment was to determine the optimum temperature range for the activity of the enzyme lactase. Extreme temperatures can have a detrimental effect on enzymes; very hot temperatures can cause the denaturation in the enzyme‚ which is the loss of protein structure. This causes a change in the shape of the enzyme leading to its inability to perform its function. As previously stated‚ the alternate hypothesis read: the optimal temperature range for lactase activity
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Is homosexuality biological based? Homosexuality is biologically based. It’s not something someone gives a try and sees if they like it. Maybe the occurrences have something to do with the mother’s hormone levels when she is pregnant. I also think it is a little of both. Some cases it might be the X and Y thing and others it is probably just learned. I think most of the recent ones are probably learned because it is all over TV and everything. I just think it is ridiculous that they expect us
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BIOLOGICAL AND ENVIRONMENTAL FOUNDATIONS I. GENETIC FOUNDATIONS A. The foundations of development are heredity and environment. Heredity supplies our genotype (genetic makeup)‚ while heredity and environment combine to form the phenotype (observable characteristics). B. The Genetic Code 1. Chromosomes store and transmit genetic information. Each cell in the human body contains 23 pairs of chromosomes. 2. DNA (deoxyribonucleic acid) molecules make up chromosomes. 3. A gene is a segment of a DNA molecule
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The environmental factors that effected the rate of enzyme reactions were the enzyme concentration‚ pH‚ and temperature. These environmental factors help enzymes break down the poisonous chemicals into harmless substance. When we tested the liver with 2ml of hydrogen peroxide for a normal reaction it showed that it was exothermic. We added more hydrogen peroxide and the reaction rate of the liver was 3. We learned that the catalase is reusable because the liver reacted both times when we put in
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Ye Tao BISC220-13155 The Effect of Temperature on the Digestion of Starch by Activity of Enzyme α-Amylase: Observation of Rate of Starch Disappearance through Iodine Test Introduction An enzyme is a type of protein that‚ through its own structure including hydrogen bonds‚ acts like a biological catalyst and is able to accelerate the biochemical reaction rate by lowering the activation energy of the whole process‚ without which cells could hardly practice any physiological functions within human
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Lab Report Effect of temperature on enzyme activity I. Purpose: Determine how effect of temperature on enzyme (catalyse) activity (in the liver). II. Materials * Raw liver * Forceps * 50mL 1% hydrogen Peroxide (H * 25mL graduated cylinder * 50mL‚ 400mL beakers * Pureed liver * 5 Filter-paper disks * Paper towels * Timer or stopwatch * Thermometer * Hot plate III. Procedure 1.Gather all necessary materials; start
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Effect of pH on Enzyme Activity A piece of Solanum tuberosum (potato) was removed and mixed with distilled water in a blender. The resulting solution was filtered through multiple layers of cheese cloth to filter out the liquid by eliminating any large pieces in the solution. The solution created was catechol. Five different solutions were prepared as blanks with each test tube containing 6.0mL of a different pH (pH 4‚ pH6‚ pH7‚ pH8‚ pH10) of phosphate buffer‚ 1.0mL of the enzyme and 1.0mL of water
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Discuss biological approaches to addiction (9+16 Marks) The genetics of addiction: * People who have an addictive personality are likely to be predisposed to it because of their genes. * Family and twin studies have demonstrated that genes contribute towards the development of alcohol dependence‚ with heritability estimates of between 50 and 60 % for both males and females. McGue‚ 1999 * Fowler et al‚ 2007 – found that in a study of 1‚214 twins genetic influences played a role in the
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Paper Written by Mr. RAHUL P. MORE ABSTRACT Self Help Groups : Catalyst for Women Empowerment (The Paper to be presented at 60th All India Commerce Conference at Hyderabad from 27th December 2007 to 29th December 2007) `Self-help’ may be defined as a process‚ group or organization comprising people coming together or sharing an experience or problem‚ with a view to individual and/ or mutual benefit. As empowerment commonly means `becoming powerful’‚ self-help may thus be viewed as one
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Identification Of Biological Molecules Biology 12 Behrooz Kianian Period: 4 Partner: Chantelle Date: Thursday‚ Nov 7th Question 1. What happens to protein when they are exposed to very high temperatures? Proteins exposed to very high temperatures become denatured. Meaning they change shape. If a protein is denatured
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