What is the energy required to maintain life-sustaining activities at rest for a given period called?

What is the energy required to maintain life-sustaining activities at rest for a given period called?

• A. Basal Metabolic Rate
• B. Total Daily Energy Expenditure
• C. Physical Activity Level
• D. Thermic Effect of Food

Answer: (A)

This question centers on the energy the body must use to keep essential life-sustaining processes going while at rest. That energy is called basal metabolic rate. It represents the calories the body needs to perform basic functions like breathing, circulating blood, and maintaining cell processes when you’re fasting, lying down, and in a comfortable environment for a set period. BMR is usually reported as calories per day and is measured under strict conditions—after an overnight fast, in a rested and thermally neutral state. It serves as a baseline for estimating overall daily energy needs. Other terms describe different things: total daily energy expenditure includes all activity and processes throughout the day; physical activity level is a comparative factor that scales energy needs with activity; and the thermic effect of food is the energy used to digest and process the nutrients you eat. So the energy required to sustain life at rest is basal metabolic rate.

This question centers on the energy the body must use to keep essential life-sustaining processes going while at rest. That energy is called basal metabolic rate. It represents the calories the body needs to perform basic functions like breathing, circulating blood, and maintaining cell processes when you’re fasting, lying down, and in a comfortable environment for a set period. BMR is usually reported as calories per day and is measured under strict conditions—after an overnight fast, in a rested and thermally neutral state. It serves as a baseline for estimating overall daily energy needs. Other terms describe different things: total daily energy expenditure includes all activity and processes throughout the day; physical activity level is a comparative factor that scales energy needs with activity; and the thermic effect of food is the energy used to digest and process the nutrients you eat. So the energy required to sustain life at rest is basal metabolic rate.