GENERAL ORGANIC+BIOCHEM (LL)W/CONNECT
3rd Edition
ISBN: 9781260218022
Author: SMITH
Publisher: MCG
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 21, Problem 21.84P
How will each of the following changes affect the rate of an enzyme-catalyzed reaction whose optimum pH is 7.4?
a. decreasing the temperature from
b. increasing the temperature from
c. increasing the pH from 7.4 to 10
d. increasing the pH from 5 to 7.5
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
1. Describe enthalpy with respect to free energy change.
2. Describe the term endergonic with respect to a system's
free energy change.
3. Distinguish between free energy of a reaction and
activation energy for that same reaction.
4. What is an enzyme mechanism?
Select the correct statements about the isoelectric point of a protein.
a. the charge on the protein will be neutral.
b. the protein molecules will dissolve into solution.
c. the pH of the solution will always be exactly 7.
d. the pH of the solution will always be greater than 7.
e. the number of positive charges on the protein will be equal to the number of negative charges.
f. the protein molecules coagulate and precipitate from solution
g. the pH of the solution will ways be less than 7.
An enzyme requires a Zn2+ ion in order to function correctly. In this case, the Zn2+ is a(n)
a. apoenzyme
b. coenzyme
c. cofactor
d. subunit
24. A substance that can bind to an enzyme at a location other than the active site and increase or decrease the activity of that enzyme is called a(n)
a. subunit
b. proenzyme
c. modulator
d. feedback inhibitor
Chapter 21 Solutions
GENERAL ORGANIC+BIOCHEM (LL)W/CONNECT
Ch. 21.2 - In addition to the amino and carboxyl groups, what...Ch. 21.2 - Draw both enantiomers of each amino acid in...Ch. 21.2 - Prob. 21.3PCh. 21.3 - Draw the structure of the amino acid valine at...Ch. 21.3 - Identify the amino acid shown with all uncharged...Ch. 21.4 - Identify the N-terminal and C-terminal amino acid...Ch. 21.4 - Prob. 21.7PCh. 21.4 - Prob. 21.8PCh. 21.4 - Prob. 21.9PCh. 21.4 - Prob. 21.10P
Ch. 21.4 - Prob. 21.11PCh. 21.5 - Prob. 21.12PCh. 21.6 - Prob. 21.13PCh. 21.6 - Prob. 21.14PCh. 21.6 - Prob. 21.15PCh. 21.7 - Why is hemoglobin more water soluble than ...Ch. 21.8 - Prob. 21.17PCh. 21.8 - Prob. 21.18PCh. 21.9 - Prob. 21.19PCh. 21.9 - Prob. 21.20PCh. 21.9 - Prob. 21.21PCh. 21.9 - Prob. 21.22PCh. 21.10 - Prob. 21.23PCh. 21.10 - Prob. 21.24PCh. 21.10 - Prob. 21.25PCh. 21.10 - Prob. 21.26PCh. 21.10 - Prob. 21.27PCh. 21.10 - Prob. 21.28PCh. 21.10 - Prob. 21.29PCh. 21.11 - Prob. 21.30PCh. 21 - The amino acid alanine is a solid at room...Ch. 21 - Why is phenylalanine water soluble but...Ch. 21 - Draw the structure of a naturally occurring amino...Ch. 21 - Draw the structure of a naturally occurring amino...Ch. 21 - For each amino acid: [1] draw the L enantiomer in...Ch. 21 - For each amino acid: [1] draw the L enantiomer in...Ch. 21 - Draw both enantiomers of each amino acid and label...Ch. 21 - Which of the following Fischer projections...Ch. 21 - For each amino acid: [1] give the name; [2] give...Ch. 21 - For each amino acid: [1] give the name; [2] give...Ch. 21 - (a) Identify the amino acid shown with all...Ch. 21 - Prob. 21.42PCh. 21 - Prob. 21.43PCh. 21 - Draw the structure of the neutral, positively...Ch. 21 - Prob. 21.45PCh. 21 - Prob. 21.46PCh. 21 - (a) Draw the structure of the two possible...Ch. 21 - Prob. 21.48PCh. 21 - Prob. 21.49PCh. 21 - For each tripeptide: [1] draw the structure of the...Ch. 21 - Prob. 21.51PCh. 21 - For each tripeptide: [1] identify the amino acids...Ch. 21 - Prob. 21.53PCh. 21 - Prob. 21.54PCh. 21 - Prob. 21.55PCh. 21 - Prob. 21.56PCh. 21 - Prob. 21.57PCh. 21 - Prob. 21.58PCh. 21 - Prob. 21.59PCh. 21 - Prob. 21.60PCh. 21 - Prob. 21.61PCh. 21 - Prob. 21.62PCh. 21 - What type of intermolecular forces exist between...Ch. 21 - What type of interaction occur at each of the...Ch. 21 - Prob. 21.65PCh. 21 - Draw the structures of the amino acids tyrosine...Ch. 21 - Prob. 21.67PCh. 21 - Prob. 21.68PCh. 21 - Prob. 21.69PCh. 21 - Prob. 21.70PCh. 21 - Prob. 21.71PCh. 21 - Hydrogen bonding stabilizes both the secondary and...Ch. 21 - Prob. 21.73PCh. 21 - Prob. 21.74PCh. 21 - Prob. 21.75PCh. 21 - Prob. 21.76PCh. 21 - What class of enzyme catalyzes each of the...Ch. 21 - What class of enzyme catalyzes each of the...Ch. 21 - Prob. 21.79PCh. 21 - Prob. 21.80PCh. 21 - Prob. 21.81PCh. 21 - What kind of reaction is catalyzed by each of the...Ch. 21 - Prob. 21.83PCh. 21 - How will each of the following changes affect the...Ch. 21 - Prob. 21.85PCh. 21 - Prob. 21.86PCh. 21 - Prob. 21.87PCh. 21 - Prob. 21.88PCh. 21 - Prob. 21.89PCh. 21 - Prob. 21.90PCh. 21 - Prob. 21.91PCh. 21 - Prob. 21.92PCh. 21 - Why must vegetarian diets be carefully balanced?Ch. 21 - Prob. 21.94PCh. 21 - Sometimes an incision is cauterized (burned) to...Ch. 21 - Why is insulin administered by injection instead...Ch. 21 - Prob. 21.97PCh. 21 - The silk produced by a silkworm is a protein with...Ch. 21 - Explain the difference in the mechanism of action...Ch. 21 - Prob. 21.100PCh. 21 - Prob. 21.101CPCh. 21 - Suggest a reason for the following observation....
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.Similar questions
- A. Match the following Enzymes and Substrates: Enzyme III. Substrates a. Sucrase 1. Maltose b. Amylase 2. Amylose C. Lactase 3. Sucrose d. Maltase 4. Arginine e. Arginase 5. Lactosearrow_forward1. Which of the following DOES NOT describes enzymes? A. A specific enzyme can react with different substrates B. Consumed during the process of metabolism of biomolecules C. Found in both biological and inorganic reactions in the body D. Usually proteins that control rate of reactions in biological compounds 2. How does a catalyst increase the rate of a chemical reaction? A. changing the concentration of reactants B. decreasing the heat of reaction C. increasing kinetic energy D. providing an alternate reaction mechanismarrow_forward13. A specific enzyme will usually only catalyze one particular reacton. True Falsearrow_forward
- 3. Which of the following statements is FALSE? A. Enzymes speed up the attainment of a reaction equilibrium. B. Enzymes make reactions 10³ to 1020 times faster. C. Enzymes are proteins. D. Enzymes lower the amount of energy needed for a reaction. E. Enzymes are chemically unchanged during the actual catalytic process. 4. The polar head of cerebroside in the membrane can form a. Hydrogen bonds b. lon-dipole interactions c. Both A and B d. Neither A nor B with water molecule.arrow_forwardSubstrate Enzyme-substrate complex 1. Is this an example of a lock & key or induced fit model of an enzyme? > Enzymearrow_forward13. Isoenzyme assays can be used for medical diagnostic purposes because a. damaged tissue produces a different isoenzyme than undamaged tissue b. different tissues produce different isometric forms of the same enzyme C. different isoenzymes react with different substrates d. damaged tissue produces nonfunctioning isoenzymesarrow_forward
- If you wanted to improve the catalytic efficiency of an enzyme, what changes might you make the enzyme and why?arrow_forwardA Moving to another question will save this response. Question 23 The type of enzyme that catalyzes a reduction is known as a(n). A Moving to another question will save this response.arrow_forwardWhat is the active site of an enzyme? What is a substrate?arrow_forward
- Which best describes the role of enzymes in a chemical reaction? A. They lower the activation energy in the reaction. B. They prevent the reaction from occurring. C. They are produced by the reaction. D. They are consumed by the reaction.arrow_forwardA substance that can bind to an enzyme at a location other than the active site and increase or decrease the activity of that enzyme is called a(n) a. subunit b. proenzyme c. modulator d. feedback inhibitorarrow_forwardWhich of the following is NOT true regarding biomolecular reactions a. K association is the inverse of k dissociation b. Reate of reaction is dependent of rate of collision c. Irreversible reactions cannot reach equilibrium d. K association is the inverse of k dissociationarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Introductory Chemistry: An Active Learning Approa...ChemistryISBN:9781305079250Author:Mark S. Cracolice, Ed PetersPublisher:Cengage Learning
Chemistry for Today: General, Organic, and Bioche...ChemistryISBN:9781305960060Author:Spencer L. Seager, Michael R. Slabaugh, Maren S. HansenPublisher:Cengage Learning
World of ChemistryChemistryISBN:9780618562763Author:Steven S. ZumdahlPublisher:Houghton Mifflin College Div
World of Chemistry, 3rd editionChemistryISBN:9781133109655Author:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCostePublisher:Brooks / Cole / Cengage Learning
Introductory Chemistry: A FoundationChemistryISBN:9781337399425Author:Steven S. Zumdahl, Donald J. DeCostePublisher:Cengage Learning
Introductory Chemistry: An Active Learning Approa...
Chemistry
ISBN:9781305079250
Author:Mark S. Cracolice, Ed Peters
Publisher:Cengage Learning
Chemistry for Today: General, Organic, and Bioche...
Chemistry
ISBN:9781305960060
Author:Spencer L. Seager, Michael R. Slabaugh, Maren S. Hansen
Publisher:Cengage Learning
World of Chemistry
Chemistry
ISBN:9780618562763
Author:Steven S. Zumdahl
Publisher:Houghton Mifflin College Div
World of Chemistry, 3rd edition
Chemistry
ISBN:9781133109655
Author:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste
Publisher:Brooks / Cole / Cengage Learning
Introductory Chemistry: A Foundation
Chemistry
ISBN:9781337399425
Author:Steven S. Zumdahl, Donald J. DeCoste
Publisher:Cengage Learning
DIGESTER-35 | VITAMINS AND THEIR RELATED COENZYMES| GPAT | NIPER | PHARMACIST| DI; Author: GPAT DISCUSSION CENTER;https://www.youtube.com/watch?v=CGrdNYmho0s;License: Standard YouTube License, CC-BY