SAPLINGPLUS FOR PRINCIPLES OF BIOCHEMIS
7th Edition
ISBN: 9781319424572
Author: nelson
Publisher: MAC HIGHER
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Chapter 12, Problem 6P
Summary Introduction
To describe: The different types of mechanisms for signal termination.
Introduction:
Signal transduction is a biological process which is defined as the transmission of molecular signals from outside to inside of a cell. It is received by a cell which transfers it to other cells to generate an immediate response for external signals. Signal termination is the inhibition of receiving external signals by cell.
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MISSED THIS? Read Section 19.9 (Pages 878-881); Watch IWE 19.10
Consider the following reaction:
CH3OH(g)
CO(g) + 2H2(g)
(Note that AG,CH3OH(g) = -162.3 kJ/mol and AG,co(g)=-137.2 kJ/mol.)
Part A
Calculate AG for this reaction at 25 °C under the following conditions:
PCH₂OH
Pco
PH2
0.815 atm
=
0.140 atm
0.170 atm
Express your answer in kilojoules to three significant figures.
Ο ΑΣΦ
AG = -150
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kJ
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Calculate the free energy change under nonstandard conditions (AGrxn) by using the following relationship:
AGrxn = AGrxn + RTInQ,
AGxn+RTInQ,
where AGxn is the standard free energy change, R is the ideal gas constant, T is the temperature in kelvins, a
is the reaction quotient.
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SAPLINGPLUS FOR PRINCIPLES OF BIOCHEMIS
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