An enzyme that speeds up a biochemical reaction will not necessarily make it more exergonic. True...
An enzyme that speeds up a biochemical reaction will not necessarily make it more exergonic.
True or False
Homework Answers
True
An enzyme can speed up the biochemical reaction but it does not affect the free energy change of reaction
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An enzyme that speeds up a biochemical reaction will not
necessarily make it more exergonic.
True...
Question 41 2 pts Adding more substrate will always speed up an enzyme catalyzed reaction, but...
Question 41 2 pts Adding more substrate will always speed up an enzyme catalyzed reaction, but adding more enzyme will never speed up the reaction rate. True O False Question 42 2 pts Non-competitive inhibition is a more effective way to completely stop a reaction than competitive inhibition. True False 00000000
2. A catalyst is a substance that speeds up a chemical reaction, while it does not...
2. A catalyst is a substance that speeds up a chemical reaction, while it does not undergo chemical change and is not part of the chemical equation for this reaction. a. True b. False
4. An enzyme reaction in a biochemical cycle has an equilibrium constant that is 10 times...
4. An enzyme reaction in a biochemical cycle has an equilibrium constant that is 10 times that of the second reaction at 300K. If the standard reaction Gibbs free energy (A,G) of the former is -300 kJ/mol, what is the standard reaction Gibbs free energy of the second reaction?
QUESTION 6 True or false: Anaerobic organisms cannot make ATP. True O False QUESTION 7 Which...
QUESTION 6 True or false: Anaerobic organisms cannot make ATP. True O False QUESTION 7 Which of the following is a reactant of the first reaction of glycolysis? O Glucose O ADP ОАТР O 02 O Both glucose and ATP QUESTION 8 Each of the following is a high-energy product of glycolysis. From which of these can anaerobic organisms harvest the stored energy? I.e. Which of these is/are useful to an anaerobe? ОАТР O NADH O Pyruvate O All of...
no explaination is needed 28) Which of the following is true for all exergonic reactions? A)...
no explaination is needed
28) Which of the following is true for all exergonic reactions? A) The reaction proceeds with a net release of free energy B) The products have more total energy than the reactants. C) A net input of energy from the surroundings is required for the reactions to proceed. D) The reactions are nonspontaneous 29) When ATP releases some energy, it also releases Inorganic phosphate. What purpose does this serve (if any) in the cell? A) It...
11. Local conditions can affect the specificity of an enzyme for its substrate, and thus the...
11. Local conditions can affect the specificity of an enzyme for its substrate, and thus the enzyme's catalytic activity. Which of the following alterations would be least likely to affect an enzyme in this manner? a) Increased temperature b) Increased substrate concentration c) increased H concentration d) Increased pH e) none of the above True / False: (3 pts each) 12. The Gl tracts of carnivores are longer and more specialized than those of herbivores. 13. Micelles are formed when...
An enzyme is permanently changed by the reaction which it catalyzes. Select one: True False
An enzyme is permanently changed by the reaction which it catalyzes. Select one: True False
17) 17) Which of the following is true for all exergonic reactions? A) The reaction proceeds...
17) 17) Which of the following is true for all exergonic reactions? A) The reaction proceeds with a net release of free energy B) The reactions are rapid. C) The reaction goes only in a forward direction: all reactants will be converted to products, but no products will be converted to reactants. D) A net input of energy from the surroundings is required for the reactions to proceed. E) The products have more total energy than the reactants. 18 18)...
True or False: A reaction with an increase in entropy and AG<O will only occur when...
True or False: A reaction with an increase in entropy and AG<O will only occur when energetically coupled with an exergonic reaction.
The role of an enzyme in an enzyme-catalyzed reaction is to: Select one: a. make the...
The role of an enzyme in an enzyme-catalyzed reaction is to: Select one: a. make the free-energy change for the reaction more favorable. b. ensure that the product is more stable than the substrate. c. ensure that all the substrate is converted to product. d. increase the rate at which substrate is converted into product. e. do none of the above. The focus of the online practical lesson was the enzyme chymotrypsin. The catalytic mechanism by which chymotrypsin reactions occur:...
Question 41 2 pts Adding more substrate will always speed up an enzyme catalyzed reaction, but adding more enzyme will never speed up the reaction rate. True O False Question 42 2 pts Non-competitive inhibition is a more effective way to completely stop a reaction than competitive inhibition. True False 00000000
2. A catalyst is a substance that speeds up a chemical reaction, while it does not undergo chemical change and is not part of the chemical equation for this reaction. a. True b. False
4. An enzyme reaction in a biochemical cycle has an equilibrium constant that is 10 times that of the second reaction at 300K. If the standard reaction Gibbs free energy (A,G) of the former is -300 kJ/mol, what is the standard reaction Gibbs free energy of the second reaction?
QUESTION 6 True or false: Anaerobic organisms cannot make ATP. True O False QUESTION 7 Which of the following is a reactant of the first reaction of glycolysis? O Glucose O ADP ОАТР O 02 O Both glucose and ATP QUESTION 8 Each of the following is a high-energy product of glycolysis. From which of these can anaerobic organisms harvest the stored energy? I.e. Which of these is/are useful to an anaerobe? ОАТР O NADH O Pyruvate O All of...
no explaination is needed
28) Which of the following is true for all exergonic reactions? A) The reaction proceeds with a net release of free energy B) The products have more total energy than the reactants. C) A net input of energy from the surroundings is required for the reactions to proceed. D) The reactions are nonspontaneous 29) When ATP releases some energy, it also releases Inorganic phosphate. What purpose does this serve (if any) in the cell? A) It...
11. Local conditions can affect the specificity of an enzyme for its substrate, and thus the enzyme's catalytic activity. Which of the following alterations would be least likely to affect an enzyme in this manner? a) Increased temperature b) Increased substrate concentration c) increased H concentration d) Increased pH e) none of the above True / False: (3 pts each) 12. The Gl tracts of carnivores are longer and more specialized than those of herbivores. 13. Micelles are formed when...
17) 17) Which of the following is true for all exergonic reactions? A) The reaction proceeds with a net release of free energy B) The reactions are rapid. C) The reaction goes only in a forward direction: all reactants will be converted to products, but no products will be converted to reactants. D) A net input of energy from the surroundings is required for the reactions to proceed. E) The products have more total energy than the reactants. 18 18)...
True or False: A reaction with an increase in entropy and AG<O will only occur when energetically coupled with an exergonic reaction.
The role of an enzyme in an enzyme-catalyzed reaction is to: Select one: a. make the free-energy change for the reaction more favorable. b. ensure that the product is more stable than the substrate. c. ensure that all the substrate is converted to product. d. increase the rate at which substrate is converted into product. e. do none of the above. The focus of the online practical lesson was the enzyme chymotrypsin. The catalytic mechanism by which chymotrypsin reactions occur:...
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