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How does temperature affect the action of enzymes upon their substrates?
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Concerning enzymatic reactions how different, are the graphic curve of the variation of the speed of a reaction as function of substrate concentration and the curve of variation of the speed of a reaction as function of temperature? |
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How is the cooling of organs and tissues for medical transplantations associated with the effect of temperature upon enzymatic reactions? |
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Does pH affect the enzyme activity? |
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Do enzymes act better under acid or basic pH? |
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Since pepsin is a gastric enzyme does it, has acid or basic optimum pH? What happen to pepsin when it passes to the duodenum? |
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What are enzyme cofactors? |
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What is the relation between vitamins and enzyme cofactors? |
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For the enzymatic reaction what is the effect of a substance with the same spatial conformation of an enzymatic substrate? How is this type of substance known? |
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What is the action mechanism of the antibiotic penicillin? |
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What is the action mechanism of the antiretroviral drugs called protease inhibitors and used against HIV infection? |
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What are allosteric enzymes? |
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What are zymogens? |
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What are nucleic acids? What is the historic origin of this name? |
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Of what units are, nucleic acids constituted. What are the chemical entities that compose that unit? |
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What are pentoses? To what organic group do pentoses belong? Are nucleotides formed of only one type of pentose? |
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Into which two groups can the nitrogen-containing bases that form DNA and RNA be classified? What is the criterion used in that classification? |
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Which are the nucleotides “portions” that bind in the formation of nucleic acids? What is meant by the 5’ and 3’ extremities of nucleic acids?
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Bacteria are prokaryotic cells, i.e., they do not have membrane-delimited nucleus. Eukaryotes have cells with delimited nucleus. Where in these types of cells can DNA are found? |
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Who were James Watson, Francis Crik and Maurice Wilkins? |
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