Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
expand_more
expand_more
format_list_bulleted
Question
Chapter 6, Problem 3TY
Summary Introduction
Introduction:
Enzymes are known as catalysts found in the living cells. These agents increase the speed of the
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
Drag and drop the statements to the
correct box:
Enzymes DO:
Decrease required
activation energy
Enzymes DON'T:
Remain unchanged
during the reaction
Increase the reaction
rate
Energy
Change the products
made
Activation
energy
(X+Y)
reactants
Change the
reactants used
Activation Energy
A
Activation
energy
(Y→X)
products
ΔΗ
Reaction path
Reaction without catalyst
Reaction with catalyst
Name two things we learned
that can denature an enzyme:
An inhibitor was added to an enzyme and the expected rate of the reaction was not detected and the substrate was not utilized at all. This inhibitor is (choose one answer only):
Is un-competitive, meaning the inhibitor binds to a site near the active site.
Is competitive, meaning the inhibitor binds directly to the same active site as the subtrate.
Is non-competitive, meaning the inhibitor binds to site other than the active site as the subtrate.
Is irreversible, meaning the inhibitor binds covalently to the enzyme keeping the enzyme inactive permanently.
Which of the following are effects of catalyst that cause an increase in the rate of
reaction? (This is a multi-select question. Select all that apply).
a decrease in DG‡.
an increase in DG.
an increase in temperature.
an increase in the energy of the molecules/ions of reactant.
an increase in the number of molecules/ions of reactant with enough energy to
overcome the activation energy barrier.
Chapter 6 Solutions
Principles of Biology
Ch. 6.1 - Which do you think has more entropy, an NaCl...Ch. 6.1 - Prob. 1TYKCh. 6.1 - Prob. 2TYKCh. 6.2 - Prob. 1CCCh. 6.2 - Prob. 2CCCh. 6.2 - Prob. 3CCCh. 6.2 - Prob. 1TYKCh. 6.2 - An inhibitor raises the Km for an enzyme but has...Ch. 6.3 - Prob. 1CCCh. 6.3 - Prob. 1TYK
Ch. 6.3 - Prob. 2TYKCh. 6.3 - Prob. 3TYKCh. 6.4 - Prob. 1CCCh. 6.4 - Prob. 1BCCh. 6.4 - Prob. 1TYKCh. 6.4 - Prob. 2TYKCh. 6.4 - Prob. 2CCCh. 6.5 - Prob. 1TYKCh. 6.6 - During the citric acid cycle, what happens to...Ch. 6.7 - Prob. 1CCCh. 6.7 - Prob. 2CCCh. 6.7 - Prob. 3CCCh. 6.7 - Prob. 1TYKCh. 6.7 - Prob. 2TYKCh. 6.7 - Prob. 3TYKCh. 6.8 - Prob. 1CCCh. 6.8 - Prob. 1TYKCh. 6 - According to the second law of thermodynamics....Ch. 6 - Reactions that release free energy are exergonic....Ch. 6 - Prob. 3TYCh. 6 - Prob. 4TYCh. 6 - Prob. 5TYCh. 6 - Prob. 6TYCh. 6 - Prob. 7TYCh. 6 - Prob. 8TYCh. 6 - Prob. 9TYCh. 6 - Prob. 10TYCh. 6 - Describe the mechanism and purpose of feedback...Ch. 6 - What causes the rotation of the y subunit of ATP...Ch. 6 - PRINCIPLES A principle of biology is that living...Ch. 6 - Discuss how life can maintain its order in spite...Ch. 6 - Prob. 2CBQ
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Which of the following is correct regarding enzymes? Enzymes can speed up the rate of reaction by shifting the equilibrium of the reaction forward. Enzymes can make a nonspontaneous reaction spontaneous. Most enzymes are made up of DNA and RNA and are named based on the reaction that they catalyze. Enzymes can increase the rate of a reaction, but do not shift the equilibrium of a reaction.arrow_forwardEnzymes catalyze the rapid formation of product by: lowering the Gibbs free energy of the product raising the Gibbs free energy of the substrate lowering the activation energy between the substrate and the product raising the activation energy between the substrate and the product changing the AG (the change in Gibbs free energy) of the reactionarrow_forwardEnzymes are biological catalysts that enhance the rate of a reaction by: stabilizing the transition state. decreasing the amount of free energy released. increasing the activation energy. increasing the amount of free energy released. O increasing the energy in the transition state.arrow_forward
- Which of the following statements is false regarding an enzyme's ability to catalyse a reaction? an enzyme provides a reaction surface and a hydrophilic environment for the reaction to take place an enzyme binds reactants such that they are positioned correctly and can attain their transition-state configurations an enzyme allows the reaction to go through a more stable transition state than would normally be the case an enzyme can weaken bonds in reactants through the binding processarrow_forwardWhich of the following accurately characterizes enzyme active sites? (Pick two.) Active sites form the greatest number of favorable electrostatic interactions with a reaction's substrates. Active sites form the greatest number of favorable electrostatic interactions with a reaction's transition state. Competitive inhibitors that resemble an enzyme's substrate bind more tightly to the active site than those that resemble products or transition states. Competitive inhibitors that resemble an enzyme's transition state bind more tightly to the active site than those that resemble products or substrates.arrow_forwardWhich of the following will occur if there is an increase in enzyme or substrate concentration? interfere with the reaction. increase the rate of reaction. decrease the rate of reaction. not change the rate of product produced reduce the rate of product produced.arrow_forward
- Amylase is an enzyme found in saliva that breaks down starch. The enzyme is currently functioning at its optimal pH of 7 and optimal temperature of 32oC. Which of the following could result in an increase in the reaction rate? Providing an environment with a pH of 9. Decreasing enzyme concentration. Placing the reactants in an environment at 10oC. Increasing substrate concentration.arrow_forwardThe following table provides descriptions of what is occurring at steps A, B, and C in the reaction. Review the descriptions and then choose the letter from the image that matches each description in the left-hand column of the table.arrow_forwardExplain with an example the statement: Enzymes enhance reactions but are not consumed in the reaction.arrow_forward
- Which of the following describe(s) an exergonic reaction? energy is released non-spontaneous energy is absorbed spontaneousarrow_forwardPlease select all of the following statements that are true. Cofactors involve the use of vitamins to assist enzymes Competitive inhibitors bind to the same active site as the substrate. When the substrate binds to the enzyme the reaction rate increases. Non-competitive inhibitors can act as both inhibitors and activators.arrow_forwardCoenzymes function to: change the shape of enzymes, allowing different additional substrates to bind. denature the enzyme, stopping the chemical reaction from occurring. interact directly with enzymes, either enabling the reaction to occur or making the substrate-enzyme interaction more efficient. dilate blood vessels, allowing more blood to flow, allowing more substrate to reach enzymes. absorb excess hydrogen and hydroxide ions, keeping the pH relatively stable, so that reactions can occur most efficiently.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Human Heredity: Principles and Issues (MindTap Co...BiologyISBN:9781305251052Author:Michael CummingsPublisher:Cengage LearningHuman Biology (MindTap Course List)BiologyISBN:9781305112100Author:Cecie Starr, Beverly McMillanPublisher:Cengage Learning
Human Heredity: Principles and Issues (MindTap Co...
Biology
ISBN:9781305251052
Author:Michael Cummings
Publisher:Cengage Learning
Human Biology (MindTap Course List)
Biology
ISBN:9781305112100
Author:Cecie Starr, Beverly McMillan
Publisher:Cengage Learning
Haematology - Red Blood Cell Life Cycle; Author: Armando Hasudungan;https://www.youtube.com/watch?v=cATQFej6oAc;License: Standard youtube license