Final answer:
In order to determine which reactions are redox reactions, we need to identify if there is a transfer of electrons. Option A) Oxidation-reduction reaction is the correct choice as it involves the transfer of electrons.
Step-by-step explanation:
In order to determine which reactions are redox reactions, we need to identify if there is a transfer of electrons. A redox reaction involves the oxidation of one species and the reduction of another.
Let's analyze each option:
Option A) Oxidation-reduction reaction: This reaction is a redox reaction as it involves the transfer of electrons.
Option B) Anabolic reaction: Anabolic reactions are not redox reactions as they involve the synthesis of larger molecules and do not involve the transfer of electrons.
Option C) Catabolic reaction: Catabolic reactions are not redox reactions as they involve the breakdown of larger molecules and do not involve the transfer of electrons.
Option D) Biosynthetic reaction: Biosynthetic reactions are not redox reactions as they involve the synthesis of biomolecules and do not involve the transfer of electrons.
Therefore, the correct answer is Option A) Oxidation-reduction reaction.