BIO 1406/07 BK/LAB/CODE PREPACK
12th Edition
ISBN: 9781265538590
Author: Raven
Publisher: MCG
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Chapter 6, Problem 3A
Summary Introduction
Introduction:
The cells use the ATP (adenosine triphosphate) molecules for carrying out the energy-requiring processes. The ATP is the high energy phosphate compound. The energy of the cell is stored in the bonds of the ATP molecule. Hence, it is also referred to as the currency of the cell.
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oxidase
12 Cyanide is a toxic chemical that hinders the production of ATP by inhibiting the enzyme cytochrome
a. Using the graph to explain whether cyanide's inhibition of cytochrome oxidase is competitive or non
competitive inhibition. Provide evidence to support your answer.
b. Using the graph below, draw an additional curve on the graph here you would expect the other type of
inhibition to lie and label the lines competitive and non competitive inhibitor.
Reaction
Rate
↑
-Without Cyanide ->
With Cyanide
Substrate Concentration ㅋ
Relating to bioenergetics:
a. The equilibrium constant for a particular reaction is 6.8 x 10-5 which makes this reaction exergonic. True or False?b. All processes that occur in the universe are spontaneous and have low enough activation energies that molecules can often overcome the energy barrier. True or False?c. ATP has a highly negative free energy change in part because the negative charges on the oxygens repel each other in ATP but less so in ADP. True or False?
Evaluate the following statements concerning enzyme kinetics. Which one of the statements is false?
a.
Enzyme saturation fluctuates.
b.
In an uninhibited enzymatic reaction system, adding an excess of substrate will increase the reaction velocity beyond Vmax.
c.
The Vmax of an enzyme kinetics graph represents the point at which the enzyme is saturated with substrate.
d.
Non-competitive inhibition of an enzymatic reaction can be overcome by adding more unaltered enzyme.
e.
The activation energy of a reaction can be reduced by the presence of an enzyme.
Chapter 6 Solutions
BIO 1406/07 BK/LAB/CODE PREPACK
Ch. 6.1 - Prob. 1LOCh. 6.1 - Prob. 2LOCh. 6.1 - Describe the nature of redox reactions.Ch. 6.2 - Explain the laws of thermodynamics.Ch. 6.2 - Prob. 2LOCh. 6.2 - Contrast the course of a reaction with and without...Ch. 6.3 - Describe the role of ATP in short-term energy...Ch. 6.3 - Prob. 2LOCh. 6.4 - Discuss the specificity of enzymes.Ch. 6.4 - Explain how enzymes bind to their substrates.
Ch. 6.4 - Prob. 3LOCh. 6.5 - Prob. 1LOCh. 6.5 - Prob. 2LOCh. 6.5 - Prob. 3LOCh. 6 - Prob. 1DACh. 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. 3ACh. 6 - Prob. 4ACh. 6 - Enzymes have similar responses to both changes in...Ch. 6 - Prob. 6ACh. 6 - Examine the graph showing the rate of reaction...Ch. 6 - Phosphofructokinase functions to add a phosphate...
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