Practical: The effect of pH on enzyme activity Rationale Amylase is an enzyme involved in the digestion system which catalyses the breakdown of starch into sugars. It is not only present in human saliva but also in the pancreas‚ where it hydrolyses dietary starch into disaccharides and trisaccharides which are converted by other enzymes to glucose to supply the body with energy. pH has an effect on the activity of all enzymes‚ including amylase. As the pH level increases‚ the enzyme activity increases
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Egg Lab Report Introduction: An egg is a model of a human because the egg has a cell membrane like humans do inside and outside of the body that let things pass through like water. We can use eggs to study the effect of changes in the external environment on the internal environment by having harsh environments like putting the egg in only alcohol and see what happens to the inside of the egg. Diffusion is the movement of a substance down its concentration gradient from a more to a less concentrated
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Chinua Achebe’s short story "The sacrificial Egg" illustrates the life of a young African native Julius Obi‚ and the arising conflicts between two cultures. This short story takes place in a very small village in Africa‚ called Umuru in the mid 1900’s. This young African Native‚ although no native of Umuru finds himself trapped between his own culture‚ beliefs and the westernized culture. Although Julius has embraced the western culture‚ after certain events he eventually finds himself coming back
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third reaction involves molecular iodine becoming a dark blue starch;I2(aq) + starch blue-black complex3. These three reactions react in a sequence. In any reaction the concentration is exponentially related to the rate of the reaction. The rate of the reaction is dependent on potassium iodate4. Therefore as the concentration increases‚ the rate of the reaction also increases. Since the rate of the reaction is inversely proportional to time‚ as the
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Sterling Hayden AP Biology Mrs. Proehl 24 November 2014 I. Title Effect of Differing pH‚ Temperature‚ and Enzyme Concentration on Catalase Reaction Rate II. Introduction Enzymes are used to increase the rate of specific reactions in the body. Catalase‚ a specific enzyme‚ speeds the breakdown of hydrogen peroxide‚ a toxic chemical produced by cells in the body‚ into water and oxygen (Cain and others‚ 2010). The oxygen can be observed as bubbles coming from the reaction site. Catalase is found in many living tissues of organisms
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Name: Modella Studente POW # 1 Broken Eggs Problem Statement: How many eggs were broken? (And is there more than one answer?) Process: Given that she lined them up by twos and one was left over‚ by threes and one was left over‚ by fours and one was left over‚ by fives and one was left over‚ by sixes and one was left over and by sevens and it came out evenly‚ we figure the number had to be a multiple of seven and end in a one or a six. (Anything divisible by five with one left over has to
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Objective: To observe the effects of osmosis on eggs placed in vinegar (5% acetic acid)‚ syrup (60% sugar solution)‚ and water (100% distilled). Hypothesis: Hypothesis #1: It was hypothesised that the egg would gain 59 grams of mass after soaking in vinegar for 24 hours. Hypothesis #2: It was hypothesised that the egg would become larger when soaked in syrup than it once was due to the hypotonic environment. Hypothesis #3: It was hypothesised that the egg would soak in water for 72 hours‚ losing
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The Sperm and the Egg PSY/265 May 6th‚ 2012 Rhettman Mullis The Sperm and the Egg Hello‚ my name is Eve and today is going to be the most exciting day of my life. It has been a really long journey but I have finally made it to the infundibulum‚ this is the outer part of a women’s fallopian tube. My medical name is known as “Ova”‚ but to my friends I am known as Eve or Egg. I have recently been in contact with a germ cell named Adam. His medical name is known as “Sperm” and he lives inside
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Enzymes Lecture outlines •Catalysis profile •Activation energy & its •Enzyme & substrate substrates •How enzymes bind to •Lock & Key model •Induced-fit model •Enzyme assay Lecture outcomes • At the end of this lecture‚ students are able to: • Define the catalyst • Understand how enzymes work as catalysts‚ the concept of activation energy and enzymes-substrate binding • Explain different theories of the relation between enzymes and substrates Catalysis • It is probably
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Catalase (Enzymes) Abstract In this laboratory exercise‚ studies of enzyme catalase‚ which accelerates the breakdown of hydrogen peroxide into water and oxygen. The purpose was to isolate catalase from starch and measure the rate of activity under different conditions. The laboratory was also conducted in association with a second laboratory that measured the effects of an inhibitor on the enzymes. Changes in temperature and pH along with Substrate Concentration and Enzyme Concentration were the
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