Which term refers to energy used by the body at rest?

Which term refers to energy used by the body at rest?

• A. Energy used at rest
• B. Regulation of pH
• C. pH
• D. Basal Metabolic Rate

Answer: (D)

Basal metabolic rate describes the energy the body needs to maintain basic life-sustaining functions while at rest in a neutral environment after fasting. It represents the minimal rate of energy expenditure required for processes like breathing, circulation, nerve signaling, ion transport, and cellular maintenance. The term captures the idea of energy use at rest, and Basal Metabolic Rate is the standard way scientists quantify this baseline need. The other options refer to acidity balance (pH and its regulation) or simply rest-related energy in descriptive terms, not the specific metabolic rate used in physiology.

Basal metabolic rate describes the energy the body needs to maintain basic life-sustaining functions while at rest in a neutral environment after fasting. It represents the minimal rate of energy expenditure required for processes like breathing, circulation, nerve signaling, ion transport, and cellular maintenance. The term captures the idea of energy use at rest, and Basal Metabolic Rate is the standard way scientists quantify this baseline need. The other options refer to acidity balance (pH and its regulation) or simply rest-related energy in descriptive terms, not the specific metabolic rate used in physiology.