Anatomy and Physiology II Practice Test

What is the total amount of energy used by the body per day referred to as?

1. Basal Metabolic Rate

2. Resting Energy Expenditure

3. Total Metabolic Rate

4. Maximum Oxygen Consumption

The correct answer is: Total Metabolic Rate

The total amount of energy used by the body per day is referred to as the Total Metabolic Rate. This term encompasses all the energy expended through basal metabolic processes, physical activity, and the thermic effect of food. It represents the overall caloric expenditure in a 24-hour period, providing a comprehensive view of one's energy requirements. The Basal Metabolic Rate specifically defines the energy expenditure necessary to maintain basic physiological functions at rest, such as breathing, circulation, and maintaining body temperature, but does not include the energy used for physical activities or digestion. Resting Energy Expenditure is similar to Basal Metabolic Rate but is typically higher as it includes energy used in a resting state, like when sleeping and also when awake but not physically active. Maximum Oxygen Consumption, or VO2 max, indicates the maximum amount of oxygen the body can utilize during intense exercise and is not a measure of overall daily energy expenditure. Therefore, the Total Metabolic Rate is the most encompassing term as it includes all components of energy expenditure over an entire day.