Entropy is defined as the relative amount of disorganization.

Entropy is defined as the relative amount of disorganization.

• A. Catabolism
• B. Metabolism
• C. Entropy
• D. Anabolism

Answer: (C)

Entropy describes the level of disorder or randomness in a system. In thermodynamics, it reflects how many different ways the system’s components can be arranged at the microscopic level; more possible arrangements mean higher entropy, i.e., more disorganization. Concepts like diffusion or melting increase entropy because energy and matter become more spread out and less ordered. In living things, organisms maintain order locally by using energy, but the overall universe still trends toward higher entropy as energy is dispersed as heat and waste. The other terms—catabolism, anabolism, and metabolism—describe kinds of energy transformations and pathways in biology, not a measure of disorder, so they aren’t definitions of entropy.

Entropy describes the level of disorder or randomness in a system. In thermodynamics, it reflects how many different ways the system’s components can be arranged at the microscopic level; more possible arrangements mean higher entropy, i.e., more disorganization. Concepts like diffusion or melting increase entropy because energy and matter become more spread out and less ordered. In living things, organisms maintain order locally by using energy, but the overall universe still trends toward higher entropy as energy is dispersed as heat and waste. The other terms—catabolism, anabolism, and metabolism—describe kinds of energy transformations and pathways in biology, not a measure of disorder, so they aren’t definitions of entropy.