Question

Q10). Reduction reactions in biological systems generally involve...

A) loss of electrons and hydrogen ions.
B) gain of electrons and addition of hydrogen ions.
C) gain of electrons and loss of hydrogen ions.
D) loss of electrons and either addition or loss of hydrogen ions.

Answer 1

In biological systems, reduction reactions are characterized by the gain of electrons and the addition of hydrogen ions, which aligns with the general definition of reduction in redox reactions.

Step-by-step explanation:

The reduction reactions in biological systems generally involve the gain of electrons and the addition of hydrogen ions. Essentially, reduction is defined as the complete gain of electrons, which can also be accompanied by the loss of oxygen or the gain of hydrogen in a molecular compound. So, when we observe biological processes such as photosynthesis or metabolic reactions, the reducing part of these redox reactions (oxidation-reduction reactions) signifies a gain in electrons and typically an increase in hydrogen.