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QUESTION 12 in which of the following ways does an allosteric Inhibitor affect the rate of...
QUESTION 27 Which of the following statements is a true conclusion from the kinetics and equilibrium...
QUESTION 27 Which of the following statements is a true conclusion from the kinetics and equilibrium plots shown for two reaction (A and B) shown below? 100% Y х Х 0% Sec Sec A B In the given plots, Y is the reactant and X is the product Reaction B Involves a catalyst only in the forward direction Reaction A Involves a catalyst for the forward direction. Both reactions A and B are unimolecular reversible reactions QUESTION 28 Which of...
Question 1 2 pts How does a noncompetitive inhibitor decrease the rate of an enzyme-catalyzed reaction?...
Question 1 2 pts How does a noncompetitive inhibitor decrease the rate of an enzyme-catalyzed reaction? by decreasing the free-energy change of the reaction catalyzed by the enzyme by binding to an allosteric site, thus changing the shape of the active site of the enzyme by binding to the active site of the enzyme, thus preventing binding of the normal substrate by binding to the substrate, thus changing its shape so that it no longer binds to the active site...
QUESTION 1 Which of the following processes/pathways CANNOT occur in the absence of O2? Oxidative phosphorylation...
QUESTION 1 Which of the following processes/pathways CANNOT occur in the absence of O2? Oxidative phosphorylation Substrate level phosphorylation Oxidation of NADH Photosynthesis Fermentation 1 points QUESTION 2 Phosphofructokinase (PFK-1) is one of the most regulated enzymes in metabolism. Which of the following would be expected to be an allosteric inhibitor of PFK-1? Glucose Fructose-6-phosphate Acetyl CoA AMP 1 points QUESTION 3 Which of the following is a reactant of the first reaction of glycolysis? Glucose ADP ATP...
Please help with the following question. Please also show your work. D Question 18 10 pts...
Please help with the following question. Please also show your
work.
D Question 18 10 pts 14. Polonium (Po) has three radioactive isotopes that are part of the decay pathway for Uranium-238 (238U), shown below. These three isotopes (2upo, 214Po, and 210Po) all decay via an alpha emmision reaction (essentially shedding a Helium atom nucleus from their own nuclei), resulting in the loss of 4 amu (e.g. 118Po à 214Pb). The rate law constants for the decay of these three...
QUESTION 1 Which of the following is NOT a product of the Citric Acid Cycle? O...
QUESTION 1 Which of the following is NOT a product of the Citric Acid Cycle? O Citric acid O CO2 O NADH O FADH2 O All of the above are products QUESTION 2 What do glycolysis and the Citric Acid Cycle have in common? O They both involve oxidation of glucose. O They both occur in the cytoplasm. O They both produce CO2 O They both produce ATP and NADH QUESTION 3 Pyrimidines are synthesized through a long series of...
QUESTION 1 Which of the following is NOT a correct statement regarding a unimolecular irreversible reaction?...
QUESTION 1 Which of the following is NOT a correct statement regarding a unimolecular irreversible reaction? The rate will vary throughout the reaction The units of the rate of the reaction are 1/sec The units of the rate constant of the reaction are 1/sec This reaction will never reach an equilibrium QUESTION 3 The base common to the structures of Acetyl COA, NAD and FAD IS Adenosine Cytosine Flavin Nicotinamide QUESTION 4 glycosidic linkages, that be digested by animals Cellulose...
Which of the following reagents does not add to an alpha, beta-unsaturated ketone in a1, 4...
Which of the following reagents does not add to an alpha, beta-unsaturated ketone in a1, 4 -connieaie addition? HCN (CH_3)CuLi CH_3MgBr CH_3CH_2NH_3 Which structure is the enol form of the compound at the right? Which of the compounds below will undego decarboxylation upon heating? 3 only 1 and 3 2 and 3 2, 3, and 4 Which compound cannot form a lactone?
QUESTION 1 Imagine you want to get rich by genetically engineering tobacco plants to produce acai...
QUESTION 1 Imagine you want to get rich by genetically engineering tobacco plants to produce acai berry juice. To do so, you insert the genes for each of the enzymes in the hypothetical acai synthesis pathway, the first step of which is (hypothetically) conversion of glucose to fructose. The challenge is that glucose must be maintained at or above a minimum concentration or the plant will die because it can no longer make ATP. For the reaction pathway shown below,...
Question 1 (1 point) Which of the following best describes glycogen? Question 3 (1 point) All...
Question 1 (1 point) Which of the following best describes glycogen? Question 3 (1 point) All the protease mechanisms we discussed in class involved formation of a covalent acyl enzyme intermediate. O Alinear polymer of glucose joined by a(1,6) linkages. True False O A polymer of glucose joined by a(1,4) linkages with a(1,6) linkages every 5-10 residues. Question 4 (1 point) O A polymer of glucose joined by B(1,4) linkages with a(1,6) linkages every 5-10 residues. In the mechanism of...
Question 1 (1 point) Which of the following best describes glycogen? Question 3 (1 point) All...
Question 1 (1 point) Which of the following best describes glycogen? Question 3 (1 point) All the protease mechanisms we discussed in class involved formation of a covalent acyl enzyme intermediate. O Alinear polymer of glucose joined by a(1,6) linkages. True False O A polymer of glucose joined by a(1,4) linkages with a(1,6) linkages every 5-10 residues. Question 4 (1 point) O A polymer of glucose joined by B(1,4) linkages with a(1,6) linkages every 5-10 residues. In the mechanism of...
QUESTION 27 Which of the following statements is a true conclusion from the kinetics and equilibrium plots shown for two reaction (A and B) shown below? 100% Y х Х 0% Sec Sec A B In the given plots, Y is the reactant and X is the product Reaction B Involves a catalyst only in the forward direction Reaction A Involves a catalyst for the forward direction. Both reactions A and B are unimolecular reversible reactions QUESTION 28 Which of...
Question 1 2 pts How does a noncompetitive inhibitor decrease the rate of an enzyme-catalyzed reaction? by decreasing the free-energy change of the reaction catalyzed by the enzyme by binding to an allosteric site, thus changing the shape of the active site of the enzyme by binding to the active site of the enzyme, thus preventing binding of the normal substrate by binding to the substrate, thus changing its shape so that it no longer binds to the active site...
Please help with the following question. Please also show your
work.
D Question 18 10 pts 14. Polonium (Po) has three radioactive isotopes that are part of the decay pathway for Uranium-238 (238U), shown below. These three isotopes (2upo, 214Po, and 210Po) all decay via an alpha emmision reaction (essentially shedding a Helium atom nucleus from their own nuclei), resulting in the loss of 4 amu (e.g. 118Po à 214Pb). The rate law constants for the decay of these three...
QUESTION 1 Which of the following is NOT a product of the Citric Acid Cycle? O Citric acid O CO2 O NADH O FADH2 O All of the above are products QUESTION 2 What do glycolysis and the Citric Acid Cycle have in common? O They both involve oxidation of glucose. O They both occur in the cytoplasm. O They both produce CO2 O They both produce ATP and NADH QUESTION 3 Pyrimidines are synthesized through a long series of...
QUESTION 1 Which of the following is NOT a correct statement regarding a unimolecular irreversible reaction? The rate will vary throughout the reaction The units of the rate of the reaction are 1/sec The units of the rate constant of the reaction are 1/sec This reaction will never reach an equilibrium QUESTION 3 The base common to the structures of Acetyl COA, NAD and FAD IS Adenosine Cytosine Flavin Nicotinamide QUESTION 4 glycosidic linkages, that be digested by animals Cellulose...
Which of the following reagents does not add to an alpha, beta-unsaturated ketone in a1, 4 -connieaie addition? HCN (CH_3)CuLi CH_3MgBr CH_3CH_2NH_3 Which structure is the enol form of the compound at the right? Which of the compounds below will undego decarboxylation upon heating? 3 only 1 and 3 2 and 3 2, 3, and 4 Which compound cannot form a lactone?
QUESTION 1 Imagine you want to get rich by genetically engineering tobacco plants to produce acai berry juice. To do so, you insert the genes for each of the enzymes in the hypothetical acai synthesis pathway, the first step of which is (hypothetically) conversion of glucose to fructose. The challenge is that glucose must be maintained at or above a minimum concentration or the plant will die because it can no longer make ATP. For the reaction pathway shown below,...
Question 1 (1 point) Which of the following best describes glycogen? Question 3 (1 point) All the protease mechanisms we discussed in class involved formation of a covalent acyl enzyme intermediate. O Alinear polymer of glucose joined by a(1,6) linkages. True False O A polymer of glucose joined by a(1,4) linkages with a(1,6) linkages every 5-10 residues. Question 4 (1 point) O A polymer of glucose joined by B(1,4) linkages with a(1,6) linkages every 5-10 residues. In the mechanism of...
Question 1 (1 point) Which of the following best describes glycogen? Question 3 (1 point) All the protease mechanisms we discussed in class involved formation of a covalent acyl enzyme intermediate. O Alinear polymer of glucose joined by a(1,6) linkages. True False O A polymer of glucose joined by a(1,4) linkages with a(1,6) linkages every 5-10 residues. Question 4 (1 point) O A polymer of glucose joined by B(1,4) linkages with a(1,6) linkages every 5-10 residues. In the mechanism of...
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