AP BIOLOGY

Detailed explanation-1: -Metabolism is the sum of all catabolic (break down) and anabolic (synthesis) reactions in the body. The metabolic rate measures the amount of energy used to maintain life. An organism must ingest a sufficient amount of food to maintain its metabolic rate if the organism is to stay alive for very long.

Detailed explanation-2: -Metabolism is a balancing act involving two kinds of activities that go on at the same time: building up body tissues and energy stores (called anabolism) breaking down body tissues and energy stores to get more fuel for body functions (called catabolism)

Detailed explanation-3: -Adenosine triphosphate, or ATP, is an energy carrier molecule that supplies energy to many different cellular processes. It couples anabolic and catabolic reactions by capturing energy released from catabolic reactions, then supplying this energy to power anabolic reactions.

Detailed explanation-4: -Answer and Explanation: Anabolism and catabolism occur simultaneously in the body. Anabolic reactions build up complex molecules from simpler ones that require energy. This energy needed to perform anabolic reactions is supplied by ATP (adenosine triphosphate), which is produced during catabolic reactions.

Detailed explanation-5: -Anabolism and catabolism are the two broad classes of biochemical reactions that make up metabolism.