Question

How does "reverse" electron transport differ from regular electron transport in the context of bacterial respiration?

A) Reverse electron transport involves electron transfer in the opposite direction, from a higher electron acceptor to a lower one.
B) Reverse electron transport only occurs in cyanobacteria.
C) Reverse electron transport does not involve the proton motive force.
D) Reverse electron transport is used in photosynthesis but not in respiration.

Answer 1

Reverse electron transport in bacterial respiration involves electron transfer in the opposite direction, allowing electrons to flow against their usual direction. This process is used by some bacteria to generate a proton motive force and produce ATP.

Step-by-step explanation:

Reverse electron transport in the context of bacterial respiration involves electron transfer in the opposite direction, from a higher electron acceptor to a lower one. It occurs when the electron transport chain operates in reverse, allowing electrons to flow against their usual direction. This process is used by some bacteria to generate a proton motive force and produce ATP. It is important to note that reverse electron transport is not specific to cyanobacteria and can occur in other types of bacteria as well.