______ By which of the following chemical reactions does the electron-transport
ID: 524031 • Letter: #
Question
______ By which of the following chemical reactions does the electron-transport chain occur? A) protonation-deprotonation B) hydration-dehydration C) oxidation-reduction D) isomerization E) phosphorylation-dephosphorylation ______ What is the general order in which electrons pass through the electron-transport chain? A) From lowest electron affinity to highest electron affinity. B) From highest electron affinity to lowest electron affinity. C) From most reactive to least reactive. D) Form strongest acid to weakest acid. E) From most mobile to least mobile. Use the following to answer question 24-26 Match the protein with the description, statement or question. I. Complex I II Complex II III. Complex III IV. Complex IV _____ Which of these species has the lowest affinity for electrons? A) I, II, III, and IV have roughly the same affinity. B) I C) II D) III E) IV _____ NADH enters the electron-transport chain at _____ while FADH_2 enters at _____. A) I; II B) II; III C) II; I D) III; II E) They both enter at I. _____ Which complex transfers electrons to molecular oxygen? A) I B) II C) III D) IV E) No complex is involved, just Cytochrome c.Explanation / Answer
22) In oxidation-reduction reaction electron transport chain will occur.
During oxidation electrons are released.while during reduction reaction electrons are absorbed.
Therefore option (C) is correct.
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