Which hormone greatly influences the BMR?

Which hormone greatly influences the BMR?

• A. The endocrine hormone
• B. Thyroxine
• C. The growth hormone
• D. Insulin

Answer: (B)

Thyroxine, a hormone produced by the thyroid gland, plays a crucial role in regulating the basal metabolic rate (BMR). BMR refers to the number of calories that the body requires at rest to maintain basic physiological functions such as breathing, circulation, and cell production. Thyroxine increases metabolic activity in tissues, resulting in an elevation of energy expenditure. When thyroxine levels are adequate, the body's metabolism operates efficiently, promoting energy utilization. Conversely, low levels of thyroxine can lead to a decreased metabolic rate, resulting in weight gain and other metabolic issues. The other options, while important, do not have as direct an influence on BMR as thyroxine. Endocrine hormones refer to a broad category of hormones that regulate various body functions, making this option too vague. Growth hormone is more associated with growth and development, influencing muscle mass and metabolism but not as significantly impacting BMR as thyroxine. Insulin primarily regulates blood sugar levels and plays a role in energy storage rather than directly influencing basal metabolic rate. Thus, thyroxine stands out as the predominant hormone affecting BMR.

Thyroxine, a hormone produced by the thyroid gland, plays a crucial role in regulating the basal metabolic rate (BMR). BMR refers to the number of calories that the body requires at rest to maintain basic physiological functions such as breathing, circulation, and cell production. Thyroxine increases metabolic activity in tissues, resulting in an elevation of energy expenditure. When thyroxine levels are adequate, the body's metabolism operates efficiently, promoting energy utilization. Conversely, low levels of thyroxine can lead to a decreased metabolic rate, resulting in weight gain and other metabolic issues.

The other options, while important, do not have as direct an influence on BMR as thyroxine. Endocrine hormones refer to a broad category of hormones that regulate various body functions, making this option too vague. Growth hormone is more associated with growth and development, influencing muscle mass and metabolism but not as significantly impacting BMR as thyroxine. Insulin primarily regulates blood sugar levels and plays a role in energy storage rather than directly influencing basal metabolic rate. Thus, thyroxine stands out as the predominant hormone affecting BMR.