Below is an image of the Krebs cycle: acetyl-CoA oxaloacetate COASH H20 NADH NAD* H20 malate citrate fumarate isocitrate FADH2 NAD* CO2 FAD АТР NADH 4 ADP succinate GTP NAD a-ketoglutarate H20 GDP NADH CO2 succinyl CoA - COASH COASH Consider the conversion of succinate to fumarate, which is coupled with the production the electron carrier FADH2. If this reaction was NOT coupled with the production of FADH2 (and only catalyzed the conversion of succinate to fumarate), how would this impact ATP production through cell respiration? ATP production would stop because no high energy electron carriers would be produced ATP production would still occur, but there would be a much lower ATP yield because a large number of electron carriers are no longer being made OATP production would stop because without FADH2 we will no longer have electrons moving through the electron transport chain ATP production would still occur, but there would be a slightly lower ATP yield because a small number of electron carriers are no longer being produced

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Below is an image of the Krebs cycle:
acetyl-CoA
oxaloacetate
COASH
H20
NADH
NAD*
H20
malate
citrate
fumarate
isocitrate
FADH2
NAD*
CO2
FAD
АТР
NADH +
ADP
succinate
GTP
NAD+ a-ketoglutarate
H20
GDP
NADH +
CO2
COASH
succinyl CoA
COASH
Consider the conversion of succinate to fumarate, which is coupled with the
production the electron carrier FADH2. If this reaction was NOT coupled with the
production of FADH2 (and only catalyzed the conversion of succinate to fumarate),
how would this impact ATP production through cell respiration?
OATP production would stop because no high energy electron carriers would be
produced
ATP production would still occur, but there would be a much lower ATP yield
because a large number of electron carriers are no longer being made
ATP production would stop because without FADH2 we will no longer have
electrons moving through the electron transport chain
ATP production would still occur, but there would be a slightly lower ATP yield
because a small number of electron carriers are no longer being produced
Transcribed Image Text:Below is an image of the Krebs cycle: acetyl-CoA oxaloacetate COASH H20 NADH NAD* H20 malate citrate fumarate isocitrate FADH2 NAD* CO2 FAD АТР NADH + ADP succinate GTP NAD+ a-ketoglutarate H20 GDP NADH + CO2 COASH succinyl CoA COASH Consider the conversion of succinate to fumarate, which is coupled with the production the electron carrier FADH2. If this reaction was NOT coupled with the production of FADH2 (and only catalyzed the conversion of succinate to fumarate), how would this impact ATP production through cell respiration? OATP production would stop because no high energy electron carriers would be produced ATP production would still occur, but there would be a much lower ATP yield because a large number of electron carriers are no longer being made ATP production would stop because without FADH2 we will no longer have electrons moving through the electron transport chain ATP production would still occur, but there would be a slightly lower ATP yield because a small number of electron carriers are no longer being produced
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