Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN: 9781305389892
Author: Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher: Cengage Learning
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Chapter 2, Problem 14TYK
Summary Introduction
To explain:
The substance that can be added to the reaction mixture to maintain a high activity of the enzyme, with the reason for the same.
Introduction:
The acidic or basic character is expressed in terms of pH (potential of hydrogen). It is a negative logarithm of the concentration of
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Chapter 2 Solutions
Biology: The Dynamic Science (MindTap Course List)
Ch. 2.1 - Distinguish between an element and an atom, and...Ch. 2.2 - Prob. 1SBCh. 2.2 - Prob. 2SBCh. 2.2 - Prob. 3SBCh. 2.3 - Prob. 1SBCh. 2.3 - Prob. 2SBCh. 2.3 - Prob. 3SBCh. 2.3 - Prob. 4SBCh. 2.4 - Prob. 1SBCh. 2.4 - Prob. 2SB
Ch. 2.5 - Prob. 1SBCh. 2.5 - Why are buffers important for living organisms?Ch. 2 - Which of the following statements about the mass...Ch. 2 - Oxygen (O) is a(n) _______; the oxygen we breathe...Ch. 2 - The chemical activity of an atom: a. depends on...Ch. 2 - When electrons are shared equally between atoms,...Ch. 2 - Which of the following is not a property of water?...Ch. 2 - The water lattice: a. is formed from hydrophobic...Ch. 2 - A hydrogen bond is: a. a strong attraction between...Ch. 2 - Apply Evolutionary Thinking What properties of...Ch. 2 - If pond water has a pH of 5, the hydroxide...Ch. 2 - Prob. 10TYKCh. 2 - Prob. 11TYKCh. 2 - Prob. 12TYKCh. 2 - Discuss Concepts You place a metal pan full of...Ch. 2 - Prob. 14TYKCh. 2 - Prob. 15TYKCh. 2 - The pH of human stomach acid ranges from 1.0 to...Ch. 2 - Prob. 2ITDCh. 2 - Prob. 3ITD
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- Use the following graph to diagram the energetics of a chemical reaction, with and without an enzyme. Be sure to position reactants and products at appropriate points and to indicate the stages in the reaction and the energy levels.arrow_forwardBased on the given question which of the following choices is the correct answer?A. When an enzyme catalyzes a reaction, it increases the activation energy of the reactionB. When an enzyme catalyzes a reaction, it decreases the activation energy of the reactionC. When an enzyme catalyzes a reaction, it increases the activation energy of the productD. When an enzyme catalyzes a reaction, it does not affect the activation energy of the reaction.arrow_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
- Briefly discuss three (3) reasons why enzyme reactions are better than its chemical reactions counterparts.arrow_forwardEnzymes are chemical catalysts. What does a catalyst do to a chemical reaction and how does it work? Be sure to describe the energetics of the reaction, including an energy diagram, as part of your explanation.arrow_forwardWhich statement best summarizes the structure of an enzyme before and after it catalyzes a reaction? a.) Its structure is the same. b.) It gains a water molecule in the reaction. c.) It loses a carbon atom in the reaction. d.) It loses a hydrogen atom in the reaction,arrow_forward
- An enzyme accelerates chemical reactions by all of the following, EXCEPT: a) Bringing reactants close together b) Shifting equilibrium to favor the products c) Adding temporary charges to substrates d) Orienting chemical bonds for best reactivity e) Straining chemical bonds that will be brokenarrow_forwardEnzymes are organic catalysts that (a) alter the direction in which a chemical reaction proceeds, (b) determine the nature of the products of a reaction, (c) increase the speed of a chemical reaction, (d) are essential raw materials for a chemical reaction that are converted into some of its products.arrow_forwardWhich 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 formationarrow_forward
- Discuss how changes in free energy in a reaction are related to changes in entropy and enthalpy.arrow_forwardChoose the best description of an enzyme: (a) It allows a chemical reaction to proceed extremely fast. (b) It increases the rate at which a chemical reaction approaches equilibrium relative to its uncatalyzed rate. (c) It makes a reaction thermodynamically favorable.arrow_forwardWhat 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 reactionarrow_forward
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