Do When grown anaerobically on glucose, yeast (S. cerevisiae) converts pyruvate to acetaldehyde, then reduces acetaldehyde to ethanol using electrons from NADH. Macmillan Learning Write the chemical equation for the reaction that reduces acetaldehyde (CH3CHO) to ethanol (CH3CH2OH). The table provides the standard reduction potential, E'o, of the relevant half-reactions. Half-reaction E'° (V) Acetaldehyde + 2 H+ + 2e → ethanol -.197 NAD* + 2H+ + 2e¯ → NADH + H+ -.320 Calculate the equilibrium constant, K' eq, , at 25.0 °C for the reaction that reduces acetaldehyde to ethanol. ×10 K'eq =

Biochemistry
9th Edition
ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Chapter1: Biochemistry: An Evolving Science
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Do When grown anaerobically on glucose, yeast (S. cerevisiae) converts pyruvate to acetaldehyde, then reduces acetaldehyde to
ethanol using electrons from NADH.
Macmillan Learning
Write the chemical equation for the reaction that reduces acetaldehyde (CH3CHO) to ethanol (CH3CH2OH).
The table provides the standard reduction potential, E'o, of the relevant half-reactions.
Half-reaction
E'° (V)
Acetaldehyde + 2 H+ + 2e → ethanol
-.197
NAD* + 2H+ + 2e¯ → NADH + H+
-.320
Calculate the equilibrium constant, K'
eq,
, at 25.0 °C for the reaction that reduces acetaldehyde to ethanol.
×10
K'eq =
Transcribed Image Text:Do When grown anaerobically on glucose, yeast (S. cerevisiae) converts pyruvate to acetaldehyde, then reduces acetaldehyde to ethanol using electrons from NADH. Macmillan Learning Write the chemical equation for the reaction that reduces acetaldehyde (CH3CHO) to ethanol (CH3CH2OH). The table provides the standard reduction potential, E'o, of the relevant half-reactions. Half-reaction E'° (V) Acetaldehyde + 2 H+ + 2e → ethanol -.197 NAD* + 2H+ + 2e¯ → NADH + H+ -.320 Calculate the equilibrium constant, K' eq, , at 25.0 °C for the reaction that reduces acetaldehyde to ethanol. ×10 K'eq =
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