Biology 30 Diploma Practice Test

Thyroid-stimulating hormone (TSH) is produced by the anterior pituitary gland and plays a crucial role in regulating metabolism. Its primary function is to stimulate the thyroid gland to produce and release thyroid hormones, namely thyroxine (T4) and triiodothyronine (T3). These hormones are key players in the body’s metabolic processes, affecting various physiological functions such as heart rate, body temperature, and the rate at which the body uses energy.

When TSH binds to its receptors on the thyroid gland, it triggers the synthesis and secretion of these hormones, which in turn help to regulate metabolism and energy use in the body. Therefore, TSH directly influences metabolic rates and overall energy balance, making option C the accurate choice regarding the function of thyroid-stimulating hormone.