BIOLOGY 12TH ED (LL) W/ CONNECT
12th Edition
ISBN: 9781264898091
Author: Raven
Publisher: MCG
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Chapter 6, Problem 5U
Summary Introduction
Introduction:
The atoms present in the molecules are bound together by the energies. The energy is required to break down the bonds present between the atoms in a molecule. The atomic motions of the atoms are increased by the heat energy.
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What is activation energy?
a. The thermal energy associated with random movements of molecules
b. The energy released through breaking chemical bonds
c. The difference in free energy between reactants and products
d. The energy required to initiate a chemical reaction
Which of the following statements are correct about how enzymes accelerate chemical reactions (select all that apply)?
A.
Enzymes bind substrates to raise their effective concentration
B.
Enzymes enhance the rate of a chemical reaction
C.
Enzymes catalyze chemical reactions by destabilizing transition states
D.
Side chains of protein provide reactive groups that facilitate reaction
E.
Enzymes shift the equilibrium of a chemical reaction to favor product formation
On the energy diagram below, which point represents a transition state?
energy
A
B.
Point 1
Point 2
C. Point 3
D.
Point 4
reaction coordinate
Chapter 6 Solutions
BIOLOGY 12TH ED (LL) W/ CONNECT
Ch. 6.1 - Prob. 1LOCh. 6.1 - Prob. 2LOCh. 6.1 - Describe the nature of redox reactions.Ch. 6.2 - Explain the laws of thermodynamics.Ch. 6.2 - Prob. 2LOCh. 6.2 - Contrast the course of a reaction with and without...Ch. 6.3 - Describe the role of ATP in short-term energy...Ch. 6.3 - Prob. 2LOCh. 6.4 - Discuss the specificity of enzymes.Ch. 6.4 - Explain how enzymes bind to their substrates.
Ch. 6.4 - Prob. 3LOCh. 6.5 - Prob. 1LOCh. 6.5 - Prob. 2LOCh. 6.5 - Prob. 3LOCh. 6 - Prob. 1DACh. 6 - A covalent bond between two atoms represents what...Ch. 6 - During a redox reaction the molecule that gains an...Ch. 6 - Prob. 3UCh. 6 - A spontaneous reaction is one in which a. the...Ch. 6 - Prob. 5UCh. 6 - Which of the following is NOT a properly of a...Ch. 6 - Where is the energy stored in a molecule of ATP?...Ch. 6 - Prob. 1ACh. 6 - Which of the following statements is NOT true...Ch. 6 - Prob. 3ACh. 6 - Prob. 4ACh. 6 - Enzymes have similar responses to both changes in...Ch. 6 - Prob. 6ACh. 6 - Examine the graph showing the rate of reaction...Ch. 6 - Phosphofructokinase functions to add a phosphate...
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Similar questions
- Which two of the following apply to the products of an exergonic reaction? A. Have less energy than the reactants B. Are less ordered than the reactants C. Are more ordered than the reactants D. Have more energy than the reactantsarrow_forwardWhat statements concerning free energy change are true or false? a. Free energy change is a measure of the rate of a reaction. b. Free energy change is a measure of the maximum amount of work available from a reaction. c. Free energy change is a constant for a reaction under any conditions. d. Free energy is related to the equilibrium constant for a specific reaction. e. Free energy change is equal to zero at equilibriumarrow_forwardChoose in the options what do enzymes do for the activation of energy of the reaction -Ea, given the theory of collision? a. enzymes will bind the reactants b. enzyme will raise temperature to incease the level of energy level. c. enzyme will provide an alternative reaction pathwayarrow_forward
- Would you expect the products of an endergonic reaction to be more stable than the reactants? a. yes because the energy of activation is negative in these cases. b. no because the products have higher potential energy which result in less stable molecules. c. no because the energy of activation is always lower in an endergonic reaction, which results in a less stable product. d. yes because the products have higher free energy and therefore require more energy to break bonds.arrow_forwardWhich of the following increases the rate of a reaction? a. cold temperatures b. solid reactants c. increased reactant concentration d. absence of a catalystarrow_forwardAnswer the following question using the reaction coordinàte diagram shown below. 280 240 200 160- 120- 80 40 Time How would the addition of a catalyst affect the reaction? A. The rate of reaction will increase because potential energy of the reactants is increased. B. Catalysts have no effect on reactions. O C. The rate of reaction will decrease because the activation energy is lowered. D. The rate of reaction will increase because the activation energy is decreased. Chp Co Heat content (H) kilojoulesarrow_forward
- Which statements concerning free energy change are true?a. Free energy change is a measure of the rate of a reaction.b. Free energy change is a measure of the maximum amountof work available from a reaction.c. Free energy change is a constant for a reaction under anyconditions.d. Free energy change is related to the equilibrium constantfor a specific reaction.e. Free energy change is equal to zero at equilibrium.arrow_forwardWhat are enzymes? A. Enzymes are biological catalysts made up of amino acids B. Enzymes are biological catalysts that create an environment to lower the energy expenditure to break "old" bonds. C. Enzymes are biological catalysts that provide a mechanism to make unfavorable reactions proceed. D. Enzymes are biological catalysts that require cofactors to effect catalysis E. Enzymes are biological catalysts that provide the means to channel chemical energy to allow biological transformations to occurarrow_forwardMatch each reaction description to the type of enzyme that catalyzes the reaction. 1. Oxidation and reduction of compounds 2. Transfers a functional group from one compound to another compound 3. Utilizes water to break bonds within a compound 4. Addition/removal of a group of atoms and bonds within a compound 5. Forms a bond between two compounds A. Ligase B. Transferase C. Hydrolase D. Oxidoreductase E. Isomerase F. Lyasearrow_forward
- Peptide bonds are formed via what type of reaction? A. Condensation B. Hydrolysis C. Oxidation-Reduction D. None of the abovearrow_forwardDoes a catalyst that increases the rate of a reaction also increase the rate of the reverse reaction? Why or why not? Explain your answer and include a diagram.arrow_forwardUse graphs to illustrate enzyme activity as a function of the following: a. substrate concentration b. enzyme concentration c. pH d. temperaturearrow_forward
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