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4340 Biochemistry

A scientist was studying the electron transport chain and developed a compound that bound to all the cytochromes in the proteins of the electron transport chain. Once bound, the compound blocked electron acceptance by the iron in the heme group of the cytochrome. Which one of the following would be most likely to occur in the presence of an oxidizable substrate?

AThe amount of heat generated from NADH oxidation would increase.
BThe rate of succinate oxidation would not be affected.
CATP could still be generated from the oxidation of NADH by transfer of electrons to O2.
DCell death would result from a lack of ATP.
Biochemistry
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