Answer :
Answer: B. Catabolism
Explanation: In terms of biological reactions, there are two main categories that each reaction belongs to. There are catabolic and anabolic reactions.
Catabolic reactions are reactions that release energy as a product and involve the breakdown of large molecules into smaller, simpler ones. Examples of catabolic reactions in biology include digestion (where food is broken down into small nutrients that the body can absorb) and cellular respiration (where glucose is continuously broken down to make chemical energy in the form of ATP)
On the other hand, anabolic reactions are reactions that require energy as a reactant and create larger molecules from smaller ones. Examples of anabolic reactions include photosynthesis (where carbon dioxide and water is used to make glucose) and the synthesis of proteins. (where amino acids are synthesized together to form more complex proteins)
Thus, choice b is the correct answer because catabolism is the accurate term that describes reactions that breakdown large molecules and release energy.
Digestion is an example of a catabolic reaction, but it is not the umbrella term that describes all reactions that release energy and break down molecules. Thus, choice C is not the best answer.
Metabolism is a term that refers to all of the chemical processes that occur within an organism in order to regulate its energy level. It is not a term that specifically describes whether or not a reaction breaks down molecules and releases energy. Thus, choice D is an incorrect answer.
