In the electron transport system, each cytochrome receives the electrons from a stronger __________ and transfers them to a stronger __________.
A) nitrogen compound series; sulfur compound series
B) reductant; oxidant
C) inorganic donor; organic donor
D) all of the above
E) none of the above

Question

Quizplus · Accepted Answer

The electron transport system involves a series of redox reactions where electrons are transferred from a strong reductant (such as NADH or FADH2) to a strong oxidant (such as oxygen). Cytochromes are a group of proteins that pass electrons along the chain by receiving electrons from a stronger donor and transferring them to a stronger acceptor. Therefore, option B is the correct answer. Options A and C are not related to the electron transport system, and option D is too broad and encompasses incorrect choices. Option E is incorrect as well.

In the Electron Transport System, Each Cytochrome Receives the Electrons