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- Which of the following statements about the allosteric site is true? a. The allosteric site is a second active site on a substrate in a metabolic pathway. b. The allosteric site on an enzyme can allow the product of a metabolic pathway to inhibit that enzyme and stop the pathway. c. When the allosteric site of an enzyme is occupied, the reaction is irreversible and the enzyme cannot react again. d. An allosteric activator prevents binding at the active site. e. An enzyme that possesses allosteric sites does not possess an active site.4. a. Use the data in the graph above to estimate a KM value for the enzyme in the presence of these metabolites, and enter them into the table below. b. Classify these metabolites as either activators or inhibitors, and explain your rationale below.1. Describe the reaction catalyzed by salivary amylase. To which class of enzymes does amylase belong? Explain thoroughly.
- 1. Write the ten reactions of the glycolytic pathway, naming all enzymes and providing the structural formulas of their substrates and products.1. There are two major categories of enzyme, inhibition, name, and describe them.  1a. Reverse inhibition can be overcome to allow the enzyme to resume is Catley activities. Describe how reversible inhibition can occur and how it can be over come.5. a) Why would an enzyme that is effective with one reaction have no effect on another reaction?
- 1. Please identify the substrate and type of reaction, and explain how these reactions work for the following two enzymes Two enzymes: succinate dehydrogenase and L-amino acid reductase1. List the main coenzymes in metabolism and describe their roles.1, Using Model 10.9, draw the structure of the substrates of the pentose phosphate pathway and write down the enzymes and coenzymes that are involved in the reaction
- 1. What are the effects of pH and temperature to catalase? What is the optimum pH and optimum temperature for catalase? 2. Explain why the rate of reaction initially increases with increase in temperature then gradually declines as the temperature is further increased. 3. Is the rate of enzymatic reaction always directly dependent on enzyme concentration? Explain. 4. Explain the effect of substrate concentration on enzyme activity. 5. What is the effect of CuSO, on the enzymatic activity of catalase? 6. Is CuSO4 an activator or inhibitor? If it is an inhibitor, what kind of inhibitor is it?1. Describe the two ways by which the activity of an enzyme can be inhibited.1.Enumerate the enzymes of the alpha ketoglutarate dehydrogenase complex and write its mechanism of action