Biology
11th Edition
ISBN: 9781259188138
Author: Peter H Raven, George B Johnson Professor, Kenneth A. Mason Dr. Ph.D., Jonathan Losos Dr., Susan Singer
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 6, Problem 2U
During a
a. reduced and now has a higher energy level.
b. oxidized and now has a lower energy level.
c. reduced and now has a lower energy level.
d. oxidized and now has a higher energy level.
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When an enzyme catalyzes a reaction… A. The pH changes B. Substrate concentration is reduced C. Product concentration is reduced D. Substrate concentration is increased
Enzymes catalyze a chemical reaction by
A. decreasing the amount of ATP required to activate a reaction
B. increasing the amount of ATP required to activate a reaction
C. slowing down the reaction to obtain more products
D. increasing the reaction to obtain more products
E. decreasing the amount of ATP required and obtaining more products.
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
Ch. 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. 3A
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- In which of the following reactions is the reactant oxidized? a. ATP → AMP b. NAD+ → NADH c. NADH → NAD+ d. acetaldehyde → ethanolarrow_forwardA molecule that is phosphorylated has a. been reduced as a results of a redox reaction involving the loss of an organic phosphate. b. a decreased chemical reactivity; it is less likely to provide energy for cellular work. c. been oxidized a a result of a redox reaction involving the gain of an inorganic phosphate. d. an increased chemical potential energy; it is primed to do cellular work. e. less energy than before its phosphorylation and therefore less energy for cellular work.arrow_forwardWhich of the following is TRUE about the enzymatic catalysis of a chemical reaction? A. It increases the energy of the transition state B. It decreases the free energy ∆G so that a reaction can proceed spontaneously C. It decreases the energy of the transition state D. It increases the forward and reverse ratesarrow_forward
- What 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_forwardThe Acronym, OiL-RiG, is meant to help explain the fact that:A. OilRigs are a threat to the environment and need to be constantlychecked for leaks.B. Oxidation Reactions involve a loss in Valence Electrons andReduction Reactions involve a gain in Valence Electrons.C. Oxidation Reactions involve a loss in Valence Protons andReduction Reactions involve a gain in Valence Protons.D. Oxidation is Laborious & Reduction is Glorious.arrow_forwardEnzymes are: A. Broken down in reactions that require energy input. B. Not needed forr catabolic reactions. C. Electron carrier molecules. D. Proteins that function as catalysts. E. All of the choices are correct.arrow_forward
- Which of these statements concerning enzymes is correct? a. Enzymes increase the rate of reactions but are permanently changed as a result. b. Enzymes are proteins that function as catalysts. c. Enzymes increase the activation energy requirement for a reaction to occur. d. Enzymes usually can only double the rate of a chemical reaction. e. Enzymes increase the kinetic energy of the reactants.arrow_forwardINSTRUCTIONS - Answer the following multiple-choice questions and EXPLAIN in 3-5 sentences why you chose that answer. Answer properly -arrow_forwardHydrolysis is an example of which type of reaction? A. Catabolic B. Anabolic C. Exchange D. None of the above.arrow_forward
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