Question

Which of the following is a common feature of all electron carriers used during cellular respiration?

They can remove electrons from oxygen.

They can be reversibly oxidized and reduced.

They can carry both protons and electrons.

They are membrane-bound.

Answer 1

Electron carriers in cellular respiration are characterized by their ability to be reversibly oxidized and reduced, allowing them to effectively transfer electrons.

Step-by-step explanation:

The common feature of all electron carriers used during cellular respiration is that they can be reversibly oxidized and reduced. This means that they can accept and donate electrons as needed throughout the process. Each electron carrier has a specific role in the chain of reactions that make up cellular respiration, and their ability to cycle between oxidized and reduced states allows for the efficient transfer of electrons and, consequently, the energy those electrons carry.