_____ is the term for a hormone that influences the activity of a specific gland.
a. Steroid hormones
b. Sterol hormones
c. Tropic hormones
d. Peptide hormones
e. All of the above
Peptide hormones
c. Tropic hormones
The term for a hormone that influences the activity of a specific gland is c. Tropic hormones.
Tropic hormones refer to the specific type of hormone that targets and stimulates the function of other endocrine glands. They are produced and released by the pituitary gland, which is often referred to as the "master gland" because it controls the activity of many other glands in the body.
To determine the correct answer, you can understand the definition of each term provided:
a. Steroid hormones: Steroid hormones are derived from cholesterol and can have a variety of effects in the body, but they are not necessarily specific to influencing the activity of a gland.
b. Sterol hormones: Sterol hormones are a type of steroid hormone, so the explanation provided for (a) also applies here.
c. Tropic hormones: As mentioned earlier, tropic hormones are specifically involved in regulating the activity of other glands in the body. They are secreted by the pituitary gland.
d. Peptide hormones: Peptide hormones are a diverse group of hormones that are made up of amino acids. They can have various functions in the body, but they do not specifically target and influence the activity of a gland.
e. All of the above: This option includes all the given choices, but since tropic hormones specifically refer to hormones that influence glandular activity, this statement would not be entirely accurate.
Therefore, the correct answer is c. Tropic hormones.