Question

Which of the following statements is / are CORRECT regarding the factors that influence the amount of energy expended via the basal metabolic processes?

1) If calories decrease, basal metabolic rate decreases
2) If body weight decreases, basal metabolic rate decreases
3) If lean body mass decreases, basal metabolic rate decreases

Answer 1

The basal metabolic rate adjusts in response to caloric intake and body composition; decreases in calories, body weight, and lean body mass can lead to a lower BMR, depending on the specifics of each factor's change. The answer is option 2 and 3.

Step-by-step explanation:

The factors that influence the amount of energy expended via basal metabolic processes are complex and interconnected. Concerning the provided statements:

1. If calories decrease, the body may reduce its basal metabolic rate (BMR) to conserve energy.
2. If body weight decreases, particularly if the loss is from muscle mass, BMR may decrease because lean muscle is metabolically active and contributes to a higher metabolic rate.
3. If lean body mass decreases, BMR definitely decreases as muscle tissue has a higher metabolic rate than fat tissue.

To summarize, the BMR adjusts as a response to changes in caloric intake and body composition to maintain homeostasis and support vital functions.

Hence, The answer is option 2 and 3.