Chemistry: An Introduction to General, Organic, and Biological Chemistry (13th Edition)
13th Edition
ISBN: 9780134421353
Author: Karen C. Timberlake
Publisher: PEARSON
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Textbook Question
Chapter 16.5, Problem 16.46PP
The following graph shows the activity versus pH curves for pepsin, sucrase, and trypsin. Estimate the optimum pH for each.
16.46 Refer to the graph in problem 16.45 to determine if the reaction rate in each condition will be at the optimum rate or not.
- Trypsin, pH 5.0
- Sucrase, pH 5.0
- Pepsin, pH 4.0
- Trypsin, pH 8.0
- Pepsin, pH 2.0
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Concentration of reactants. inicremolar
Rate of an enzyme-catalyzed reaction as a function of varying reactant concentration, with the concentration
of enzyme constant
In the figure, why does the reaction rate plateau at higher reactant concentrations?
A) The rate of the reverse reaction increases at high reactant concentrations.
B) Feedback inhibition by product occurs at high reactant concentrations.
C) The reaction nears equilibrium at high reactant concentrations.
D) Most enzyme molecules are occupied by substrate at high reactant concentrations.
Rate of product formation
The following grap shows the relationship between enzyme activity and both pH and temperature for two enzymes (A and B).
Based on this graphical information
What is the optimum pH for enzyme A?
What is the optimum temperature for enzyme B?
Which enzyme has the greater activity at a pH of 4?
Which enzyme has the greater activity at a temperature of 37.8°C?
What do we mean when we say an enzyme is saturated with substrate? When an enzyme is saturated with substrate, how does adding more (a) substrate and (b) enzyme affect the rate of the reaction?
Chapter 16 Solutions
Chemistry: An Introduction to General, Organic, and Biological Chemistry (13th Edition)
Ch. 16.1 - Classify each of the following proteins according...Ch. 16.1 - Prob. 16.2PPCh. 16.1 - Prob. 16.3PPCh. 16.1 - Prob. 16.4PPCh. 16.1 - Draw the structure for each of the following amino...Ch. 16.1 - Draw the structure for each of the following amino...Ch. 16.1 - Draw the strcture for each of the following amino...Ch. 16.1 - Prob. 16.8PPCh. 16.1 - Prob. 16.9PPCh. 16.1 - Prob. 16.10PP
Ch. 16.2 - Prob. 16.11PPCh. 16.2 - Prob. 16.12PPCh. 16.2 - Prob. 16.13PPCh. 16.2 - Prob. 16.14PPCh. 16.2 - Prob. 16.15PPCh. 16.2 - Prob. 16.16PPCh. 16.3 - Prob. 16.17PPCh. 16.3 - Prob. 16.18PPCh. 16.3 - Prob. 16.19PPCh. 16.3 - Prob. 16.20PPCh. 16.3 - What type of interaction would you expect between...Ch. 16.3 - What type of interaction would you expect between...Ch. 16.3 - Prob. 16.23PPCh. 16.3 - Prob. 16.24PPCh. 16.3 - Prob. 16.25PPCh. 16.3 - Prob. 16.26PPCh. 16.3 - Prob. 16.27PPCh. 16.3 - Indicate the changes in secondary and tertiary...Ch. 16.4 - Why do chemical reactions in the body require...Ch. 16.4 - Prob. 16.30PPCh. 16.4 - Prob. 16.31PPCh. 16.4 - Prob. 16.32PPCh. 16.4 - Prob. 16.33PPCh. 16.4 - Prob. 16.34PPCh. 16.4 - Prob. 16.35PPCh. 16.4 - 16.36 Match the terms (1) active site, (2)...Ch. 16.4 - Prob. 16.37PPCh. 16.4 - Prob. 16.38PPCh. 16.4 - Prob. 16.39PPCh. 16.4 - Prob. 16.40PPCh. 16.4 - For problems 16.39 to 16.42, see Chemistry Link to...Ch. 16.4 - Prob. 16.42PPCh. 16.5 - Trypsin, a peptidase that hydrolyzes polypeptides,...Ch. 16.5 - pepsin, a peptidase that hydrolyzes proteins,...Ch. 16.5 - The following graph shows the activity versus pH...Ch. 16.5 - The following graph shows the activity versus pH...Ch. 16.5 - Prob. 16.47PPCh. 16.5 - Prob. 16.48PPCh. 16.5 - Prob. 16.49PPCh. 16.5 - Prob. 16.50PPCh. 16.5 - What is the chemical formula for hydroxyurea?Ch. 16.5 - What is the molar mass of hydroxyurea?Ch. 16.5 - Prob. 16.53PPCh. 16.5 - Prob. 16.54PPCh. 16 - Prob. 16.55UTCCh. 16 - Prob. 16.56UTCCh. 16 - Prob. 16.57UTCCh. 16 - Prob. 16.58UTCCh. 16 - 16.59 Identify the amino acids and type of...Ch. 16 - What type of interaction would you expect between...Ch. 16 - Draw the condensed structural formula for...Ch. 16 - Draw the condensed structural formula for...Ch. 16 - Seed and vegetables are often deficient in one or...Ch. 16 - 16.64 Seeds and vegetables are often deficient in...Ch. 16 - Prob. 16.65APPCh. 16 - Prob. 16.66APPCh. 16 - Prob. 16.67APPCh. 16 - Prob. 16.68APPCh. 16 - Prob. 16.69APPCh. 16 - Why do enzymes function only under mild...Ch. 16 - Prob. 16.71APPCh. 16 - Prob. 16.72APPCh. 16 - Prob. 16.73APPCh. 16 - Prob. 16.74APPCh. 16 - Prob. 16.75APPCh. 16 - Prob. 16.76APPCh. 16 - Prob. 16.77APPCh. 16 - Prob. 16.78APPCh. 16 - If a blood test indicates a high level of LDH and...Ch. 16 - Prob. 16.80APPCh. 16 - Prob. 16.81CPCh. 16 - Prob. 16.82CP
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