(BIOCHEMISTRY QUESTION) A new compound isolated from mitochondria is claimed to
ID: 992136 • Letter: #
Question
(BIOCHEMISTRY QUESTION) A new compound isolated from mitochondria is claimed to represent a previously unrecognized carrier in the electron transfer chain. It is given the name coenzyme Z. Which line of evidence do you feel is the least conclusive in assigning this compound a position in the electron transfer chain?
a. removal of coenzyme Z from the mitochondria results in a decreased rate of oxygen consumption
b. when added to a mitochondrial suspension, coenzyme Z is taken up very rapidly and specifically by the mitochondria
c. the rate of oxidation and reduction of mitochondrion-bound coenzyme Z is of the same order of magnitude as the overall rate of electron transfer in mitochondria as measured by oxygen consumption
d. the reduction potential of Z is between that of two compounds known to participate in the electron transport chain
Explanation / Answer
b. when added to a mitochondrial suspension, coenzyme Z is taken up very rapidly and specifically by the mitochondria
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.