6.1 Biology 155

Nonsteroid hormones cause the production of ATP from cAMP.

False

The alpha, beta, and delta cells located in the islets of Langerhans of the thyroid produce three different hormones that are important in the regulation of sodium and potassium levels of the blood.

False

All of the following may result from untreated diabetes mellitus EXCEPT which one?

Increased susceptibility to cancer

The thymus produces two peptides that function to:

aid in the maturation of T lymphocytes.

Which one of the following hormone pairs is antagonistic, in that they have opposing effects?

glucagon, insulin

Which one of the following is required in the diet in order for active thyroid hormones to be produced?

iodine

Cortisol is a glucocorticoid that helps maintain blood glucose levels during fasting by:

promoting fat utilization.

Hormones act upon specific target tissues because:

target tissues display the appropriate receptor for a particular hormone.