All of the following are true of enzymes except: a. they are not consumed in the...
All of the following are true of enzymes except: a. they are not consumed in the reaction they catalyze b. they are only used in synthesis reactions c. they are specific for the reaction they catalyze d. they increase the rate at which a chemical reaction occurs
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All of the following are true of enzymes except: a. they are not
consumed in the...
All of the following statements about enzymes are true EXCEPT a. they speed up chemical reactions...
All of the following statements about enzymes are true EXCEPT a. they speed up chemical reactions without changing themselves b. enzymes are proteins c. they are highly specific d. they are biological catalysts e. they are used up in a chemical reaction
The following statements about enzymes are true, except: a. they are proteins tbat speed up chemical reactions....
The following statements about enzymes are true, except: a. they are proteins tbat speed up chemical reactions. b. they are often consumed or destroyed in the reaction. c. the active site is the location of the chemical reaction. d. their function can be affected by salt concentration or pH
Indicate whether each of the following statements about enzymes is true or false. (Q12- 12. To be...
Indicate whether each of the following statements about enzymes is true or false. (Q12- 12. To be effective, they must be present at the same concentration as their substrate A. True B. False 13. They increase the equilibrium constant for the reaction, thus favoring product format A. True B. False 14. They increase the rate at which substrate is converted to product A. True B. False 15. They ensure that all substrate is converted to product. A. True B. False...
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...
Which of the following statements about enzymes are true? Select all that apply: Enzymes increase reaction...
Which of the following statements about enzymes are true? Select all that apply: Enzymes increase reaction rates by lowering the energy of the products. Enzymes increase the rate at which products are created by preventing reactions from running backwards. Enzymes increase reaction rates by lowering the activation energy of a reaction. Enzymes increase reaction rates by interacting with the substrate molecules to facilitate the reaction, for example by contorting them to facilitate bond-breakage or orienting them to favor bond formation.
18. All of the following describe enzymes EXCEPT: a. Specific catalysts b. Decrease rate of reaction...
18. All of the following describe enzymes EXCEPT: a. Specific catalysts b. Decrease rate of reaction Proteins d. Inhibitors c.
Which of the following statements concerning enzymes is true and correct? O Most enzymes are not...
Which of the following statements concerning enzymes is true and correct? O Most enzymes are not proteins Enzymes slow down the rate of chemical reactions. O An enzyme is very specific in terms of which substrates it can bind. O An enzyme is consumed by the catalytic process. Question 9 1 pts Which one of the following statements about energy is correct? O Entropy is the movement of molecules from areas of higher concentration to areas of lower concentration. O...
Part A Which f the following statements about enzymes is/are TRUE? I. Enzymes that require cofactors...
Part A Which f the following statements about enzymes is/are TRUE? I. Enzymes that require cofactors cannot function without them. Il. Enzymes speed up the rate of a reaction by decreasing the AG IlI. Enzymes are able to catalyze both the forward and reverse reaction. OI only OIl only IlI onl Il and IIl only l and Ill only I, Il, and III
Enzymes: (choose two correct options) a) are consumed in the reaction they catalyze b) reduce the...
Enzymes: (choose two correct options) a) are consumed in the reaction they catalyze b) reduce the overall change in Gibbs free energy of a reaction c) increase the equilibrium constant (Keq) of a reaction to favor product formation d) lower the transition state energy of a reaction e) decrease the entropy of the transition state relative to the uncatalyzed reaction.
Question 5&6 D. Both A and Care true E. All of the above are true 4....
Question 5&6
D. Both A and Care true E. All of the above are true 4. Arachidonic acid is the raw material for synthesis of A. Amines. B. Thyroid hormones. C. Steroids. D. Pe CE. Eicosanoids Hormones are chemicals that generally A. Increase energy metabolism. B. Transmit nerve impulses. C. Accelerate chemical reactions in cells without being 5. consumed in the reaction. D. Circulate in fluids from regulators to target cells. E. Cand D only. 6. Which one of the...
Indicate whether each of the following statements about enzymes is true or false. (Q12- 12. To be effective, they must be present at the same concentration as their substrate A. True B. False 13. They increase the equilibrium constant for the reaction, thus favoring product format A. True B. False 14. They increase the rate at which substrate is converted to product A. True B. False 15. They ensure that all substrate is converted to product. A. True B. False...
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...
18. All of the following describe enzymes EXCEPT: a. Specific catalysts b. Decrease rate of reaction Proteins d. Inhibitors c.
Which of the following statements concerning enzymes is true and correct? O Most enzymes are not proteins Enzymes slow down the rate of chemical reactions. O An enzyme is very specific in terms of which substrates it can bind. O An enzyme is consumed by the catalytic process. Question 9 1 pts Which one of the following statements about energy is correct? O Entropy is the movement of molecules from areas of higher concentration to areas of lower concentration. O...
Part A Which f the following statements about enzymes is/are TRUE? I. Enzymes that require cofactors cannot function without them. Il. Enzymes speed up the rate of a reaction by decreasing the AG IlI. Enzymes are able to catalyze both the forward and reverse reaction. OI only OIl only IlI onl Il and IIl only l and Ill only I, Il, and III
Question 5&6
D. Both A and Care true E. All of the above are true 4. Arachidonic acid is the raw material for synthesis of A. Amines. B. Thyroid hormones. C. Steroids. D. Pe CE. Eicosanoids Hormones are chemicals that generally A. Increase energy metabolism. B. Transmit nerve impulses. C. Accelerate chemical reactions in cells without being 5. consumed in the reaction. D. Circulate in fluids from regulators to target cells. E. Cand D only. 6. Which one of the...
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