Question

Which of the following will NOT increase enzymatic activity? A. Increase the concentration of cofactors B....

Which of the following will NOT increase enzymatic activity? A. Increase the concentration of cofactors B. Increase substrate concetration C. Increase Product Concentration D. Gradually increase the temperature E.Increase Enzyme Concentration Part 2: Which of the following statements about enzymes is FALSE? A. Their activity varies with pH and Temperature B. They can be reused multiple times C. The speed of the reaction increases with both enzyme and substrate concentration D. They provide energy for the reaction to occur E. They reduce the activation energy of a reaction

Homework Answers

Answer #1

1). C. Increase Product Concentration

Explanation: Increase product concentration does not increase enzyme activity. Rather it decreases the enzyme activity in some cases.

2). D. They provide energy for the reaction to occur

Explanation: Enzymes lower the activation energy of a chemical reaction. They are not consumed or produced in a reaction, but they are catalysts that allow the reaction to proceed at a faster rate by lowering activation energy of the reaction.

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
16. Which of the following is NOT true about enzymes? A) Some enzymes require cofactors. B)...
16. Which of the following is NOT true about enzymes? A) Some enzymes require cofactors. B) Enzyme inhibitors may interact either reversibly or irreversibly with an enzyme to alter its Km and /or Vmax values. C) Transition state stabilization can significantly increase the activation energy for a reaction. D) Enzymes typically act under milder conditions of temperature and pH than (nonenzyme) chemical catalysts. E) Zymogens are a form of inactive precursors of enzyme.
1.   Which of the following is true of enzyme catalyzed reactions? a.   Reaction rates are temperature dependent b.   Reaction...
1.   Which of the following is true of enzyme catalyzed reactions? a.   Reaction rates are temperature dependent b.   Reaction rates are pH dependent c.   Reaction rates depend on substrate concentration d.   Reaction rates depend on enzyme structure e.   All of the above f.    a, b, and c 2.   Which of the following is NOT true of enzymes? a.   Enzyme activity depends on reaction conditions. b.   Enzymes are catalysts that decrease the rate of reaction. c.   Enzymes can be inhibited by other proteins d.   Enzymes do not alter the change in free energy...
c) A final step in the analysis of enzymatic activity during Enzyme Practical I: Effect of...
c) A final step in the analysis of enzymatic activity during Enzyme Practical I: Effect of time, pH and temperature on the activity of acid phosphatase and Enzyme Practical II: Kinetics, effect of varying substrate concentration on enzyme activity was the addition of NaOH to your samples. Provide two reasons why you added NaOH and explain the molecular effects that NaOH has in each case!
Which of the following statement concerning enzyme-catalyzed reactions is CORRECT? The rate of an enzyme catalyzed...
Which of the following statement concerning enzyme-catalyzed reactions is CORRECT? The rate of an enzyme catalyzed reaction is independent of substrate concentration. At saturating levels of substrate, the rate of an enzyme –catalyzed reaction is proportional to the enzyme concentration. The Km for a regulatory enzyme varies with enzyme concentration. If enough substrate is added, the normal Vmax of an enzyme –catalyzed reaction can be attained even in the presence of a noncompetitive inhibitor. The sigmoidal shape of the v-versus...
QUESTION 1 Which of the following does NOT apply to an enzyme? A. Catalyst B. Inorganic...
QUESTION 1 Which of the following does NOT apply to an enzyme? A. Catalyst B. Inorganic C. Protein D. All apply to an enzyme QUESTION 2 When an enzyme catalyzes a reaction: A. Substrate(s) bind in the active site B. Products bind in the active site C. The shape of the enzyme remains unchanged D. The enzyme is consumed by the reaction QUESTION 3 Which of the following would interfere most with the ability of an enzyme to catalyze a...
What is Vmax? a) The concentration of S at which the enzyme becomes saturated. b) The...
What is Vmax? a) The concentration of S at which the enzyme becomes saturated. b) The velocity at which enzyme E is saturated with substrate S. c) The initial velocity of the enzyme at v=[S]. d) One half of the limiting enzymatic rate.
Enzymes ______. a. increase the rate at which the reaction occurs by lowering the activation energy...
Enzymes ______. a. increase the rate at which the reaction occurs by lowering the activation energy of the reaction b. decreases the rate at which the reaction occurs by raising the activation energy of the reaction c. increase the rate at which the reaction occurs by raising the activation energy of the reaction d. decreases the rate at which the reaction occurs by lowering the activation energy of the reaction Which of the following components is not contained in all...
4. A biochemist carries out an enzymatic activity assay of alcohol dehydrogenase at 37°C using 200...
4. A biochemist carries out an enzymatic activity assay of alcohol dehydrogenase at 37°C using 200 uM NADH and an excess of substrate and allows the reaction to proceed to equilibrium. At equilibrium, the concentration of NADH is measured to be 1.1 x 10–8 uM while the concentration of NAD+ is calculated to be 200 uM. What is the biochemical free energy change (deltaG'o) of the reaction system for converting NADH to NAD+, in kJ/mol? (R=8.314J/mol*K)
TRUE OR FALSE please answer all since they are parts of the same one question. No...
TRUE OR FALSE please answer all since they are parts of the same one question. No need for explanation just state whether it is true or false a. In secondary active transport, an ion gradient maintained by an ATPase drives the transport of another substance. For example, the transport of lactose into a cell by lactose permease is driven by the co-transport of H+. b.. Enzymes catalyze reactions by decreasing the activation free energy, ΔG‡ , which is the free...
The following question pertains to biochemistry A)Which of the following best describes the role of the...
The following question pertains to biochemistry A)Which of the following best describes the role of the zinc metal ion in carbonic anhydrase? 1. It dramatically shifts the reaction equilibrium toward the formation of carbonic acid. 2.It helps make water a better nucleophile 3.It increase the pka of water 4.It helps to coordinate atp which ultimately provides energy for the difficult reaction 5.It is purely structural and plays no direct role in catalysis B)Which of the following statements is correct? 1.enzyme...