Magen Gable Professor Box English 2201-025 11 September 2016 “My Last Duchess” “My Last Duchess” written by Robert Browning is a compelling poem that exposes many different elements when analyzed closely. This is a dramatic monologue that demonstrates a very jealous man who wants complete control over his Duchess. In this poem‚ a Duke is showing a portrait of his first wife to a servant of his future father-in-law in his private art gallery. He keeps this portrait behind a curtain that only
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My Last Duchess By Robert Browning Submitted to: Mrs. Parsons Gill Submitted by: Jenny Dewland Date: September 24th 2012 English 2201 1. The title of the poem being “My Last Duchess” refers to the Duke of Ferrera’s late wife‚ in which he has recently been widowed due to her unknown death. As we read the title‚ the use of “MY Last Duchess” provides the fact that the poem is being told in first person‚ being the Duke himself. In the poem‚ he is having a showing of this beautiful painting
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Gene expression is the ability of a gene to produce a biologically active protein. This process is regulated by the cells of an organism‚ it is very important to the survival of organisms at all levels. This is much more complex in eukaryotes than in prokaryotes. A major difference is the presence in eukaryotes of a nuclear membrane‚ which prevents the simultaneous transcription and translation that occurs in prokaryotes. Initiation of protein transcription is started by RNA polymerase. The activity
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seamier side of romance. It was these works which perhaps best represented the complexities of the male-female relationships of the time. Although written more than two hundred years apart‚ both "The Flea" by John Donne and "My Last Duchess" by Robert Browning‚ examine the selfishness and lustful ambitions which often hamper a man’s ability to achieve true love. As the reader is introduced to the protagonist of John Donne’s "The Flea"‚ it becomes clear that his only romantic tendencies are fueled from
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most? How do you know? Letter F disc has the least potent antibiotic because the zone of inhibition is not present with indicates that the antimicrobial agent is not an affective inhibitor of the test organism. Letter D disc has the greatest potent antibiotic because the agent is quite an affective inhibitor of the test organism. This agent creates a proportionally large zone of inhibition‚ which is greater than other test agents are. 3. Refer to Figure 26.10 of Brock Biology of
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four most important factors are: inhibitors‚ allosteric factors‚ pH‚ and temperature. There are two types of inhibitors: competitive inhibitors and noncompetitive inhibitors‚ and their names give a good indication of what they actually do. Competitive inhibitors have a similar structure to the enzyme’s substrate‚ so they can "compete" with the substrate for the active site of an enzyme. Often the enzyme will bond not to its substrate but to the competitive inhibitor‚ blocking the substrate from the
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The temperature of the enzyme‚ the pH of the solution‚ the concentration of the enzyme‚ substrate and the product. Also‚ another affector is the number of competitive and non-competitive inhibitors. As I cannot explain them all‚ I have chosen to explain the effect of temperature and also the effect of inhibitors on enzyme activity. Temperature : As the temperature is increased the kinetic theory is applied. More energy is present and the molecules move fast. This increases the chance of collision
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rate when an excess of competitive inhibitor is present (red). Explain why the graph appears as it does. On one hand‚ we have the blue line. It represents an enzyme bonding with its substrate. The line is steep‚ the reaction time is quick. Then we have a red line. The red line represents an enzyme reaction with competitive inhibitor present. The red line is much less steep. The rate of reaction time is longer and slower. Why does the line with the inhibitors appear to slow down reaction time
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Max Pham Mrs. Leslie 30 September 2014 AP Biology Enzymes: Biological Catalysts: Reading Notes 1. Concept: An enzyme alters the activation energy of a reaction Enzyme is 3D – allows it to associate with substrate (molecule that will go thru reaction) Enzyme brings two substrates together in correct orientation (dehydration synthesis) or stresses bonds of substrate (hydrolysis) - lowers activation energy for new bonds to be formed/ broken Different types of cells have different types of enzymes
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ENZYME COFACTORS AND INHIBITORS 1. DESCRIBE THE GENERAL ROLE OF COFACTORS IN ENZYME ACTIVITY. Some chemicals enhance an enzyme’s activity‚ which is what cofactors function to do. They are a non-protein component of an enzyme and may be organic molecules (called coenzymes) or inorganic ions. 2. (A) NAME FOUR HEAVY METALS THAT ARE TOXIC TO HUMANS. Four heavy metals that are toxic to humans are: 1. Cadmium (Cd) 2. Lead (Pb) 3. Mercury (Hg) 4. Arsenic (As) (B) EXPLAIN IN GENERAL TERMS WHY THESE
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