The Effect of pH on Enzymatic Reaction Rate Abstract Enzymes are affected by changes in pH. The most favorable pH value— the point where the enzyme is most active—is known as the optimum pH. This experiment was conducted to determine the effect of pH reaction rate on an enzyme‚ catalase‚ from yeast. The experimental results indicate that the catalase worked best at a neutral pH level of seven (7). Introduction An enzyme is a protein molecule that serves as a catalyst. “The basic function of
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Abstract This experiment is to study the effect of temperature on the rate of reaction between potassium permanganate with oxalic acid. We used 2cm3 of 0.02M potassium permanganate and 4cm3 of 1M sulphuric acid into a test tube. In another test tube‚ we placed 2cm3 of oxalic acid. We placed the test tubes in a water bath at 40‚ 45‚ 50‚ 55 and 60oC respectively. When the solutions have attained these temperatures pour the oxalic acid into the acidified permanganate solution and recorded the time
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The Circadian clock generates physiological and behavioral rhythms with a period roughly 24 hours. It is thought that Circadian dysfunctions underlie the pathogenesis of many psychiatric disorders such as mania-like behavior and bipolar disorder (McClung‚ 2013). Attention Deficit Hyperactivity Disorder (ADHD) is one of the most widespread psychiatric disorders in humans. Somewhere between 3 and 5% of the population is affected by ADHD (Geissler and Lesch‚ 2011). The ADHD phenotype is characterized
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“Clocks” Song Psychology Analysis The popular song‚ “Clocks‚” was released in 2002 on British alternative rock band Coldplay’s album‚ A Rush of Blood to the Head. Written predominantly by Chris Martin‚ this song intentionally reveals the thoughts and state of mind of a person undergoing an issue where he must deal with his emotions in his life. Martin’s cryptic lyrics supposedly represent the utter helplessness of the person being in a dysfunctional relationship and not wanting to escape from
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There was something daunting about constantly looking at a grandfather clock‚ at least to Cadence. Why couldn’t she stop watching it? When she looked at it‚ as if it were an enigma‚ that question arose—and for good reason. It wasn’t like she hadn’t noticed it before; quite the opposite‚ really. What made it so attractive‚ so compelling to the eye? Was it the crystal casing‚ the shiny lustre on it‚ the gold hands? Or was it the shimmering crescent moon pendulum‚ which had a star attached to it? Or
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Skills Determining the reactivity of various metals Testing Relative Oxidizing and Reducing Strengths of Metal Atoms and Ions By observing whether reactions occur between solid metals and metal ions in solution‚ you can determine the order of oxidizing and reducing agents according to strength. Question How can the presence or absence of a reaction provide information about the relative strength of oxidizing and reducing agents? Safety Precautions • Wear goggles‚ gloves‚ and an apron
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Twelve O’ Clock High Leadership The research paper is about leadership and management traits the film Twelve O’ Clock High. The papers main focus is to highlight the importance of leadership and adapting to the situation and find which form of leadership best suits that specific situation. Twelve O’ Clock High is a great example of how important different types of leadership traits are used in the most stressful types of work environments. The movie Twelve O’ Clock High teaches
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The effect of time on enzyme reaction. Abstract: In this lab investigation we will observe how the amount of hydrogen peroxide is affected by catalase over time. The enzyme was added to 10 mL’s of hydrogen peroxide and observed over time to determine the relation between time and enzyme activity. The hypothesis stated that as time increased substrate would decrease. Therefore I predicted that at 60 seconds‚ there would be the least amount of H2O2. The enzyme activity mirrored my predictions
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Stevens Wallace was born in 1879. He was born In Pennsylvania and was a gifted and known as a talented poet. Disillusionment of ten o clock was one of his more popular best known poems. Steve Wallace was well educated and attended Harvard. When he graduated he became a lawyer and wrote pomes in his free time. When i first read the poem Disillusionment of ten o clock‚ I completely missed the concept of the poem. After about a few half dozen times I realized what seven Wallace was trying to explain
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Twelve O’ Clock High Study Questions 1.) What is the development level of the 918th at the beginning of the film? Justify your answer. I feel it was a D2: The reason is at the beginning of the movie the men’s morale was low. The unit’s performance was suffering due to such things as the command to fly lower in altitude to increase accuracy‚ resulted in greater causality loss. The other problem was Colonel Davenport was a close friend to the men and had difficulty in separating himself on his
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