Most cells in the body depend on ____, a thyroid gland hormone, to regulate their metabolic rate; ____ is a strong hormone that can, with time and sufficient concentration levels, double basal metabolic rate.

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Thyroxine, also known as T4, is a thyroid gland hormone that regulates the metabolic rate of most cells in the body. It plays an important role in controlling energy expenditure and body heat production. With time and sufficient concentration levels, thyroxine can double basal metabolic rate, making it a strong hormone in terms of metabolic regulation. Glucogen is not a thyroid hormone and is instead a form of stored glucose in the liver and muscles. Cortisol is a hormone produced by the adrenal gland that plays a role in stress response and glucose metabolism. Thyrosine is an amino acid and is not a thyroid hormone.

Most Cells in the Body Depend on ____, a Thyroid