Which form of thyroid hormone has greater activity at target cells?
a. T3
b. T4
c. neither; T3 & T4 have equal activity.
Answer: a. T3
You might also like to view...
The transverse fissure separates the cerebrum from the cerebellum.
Answer the following statement true (T) or false (F)
The hyoid bone is seen at the level of the
A. mandible. B. clavicle. C. C7. D. cricoid cartilage.
Which of the following are TRUE of the Krebs cycle?A) Oxygen is required.B) Fats can be utilized as an energy source through conversion to acetyl-coA.C) Carbohydrates can be utilized as an energy source through conversion to acetyl-coA.D) It takes place in the cytosol.E) Only muscle cells utilize it as a way to make ATP.
What will be an ideal response?
In the second-messenger
a. a small amount of one hormone (the second messenger) is required to release another. b. a tropic hormone (the first messenger) stimulates secretion of another hormone (the second messenger). c. the hormone first binds to a specific surface receptor, whereupon the hormone-receptor complex moves into the cell to combine with a specific intracellular receptor. d. releasing hormones (the first messenger) from the hypothalamus regulate many anterior pituitary hormones (the second messenger). e. a hormone (the first messenger) binds to surface receptors activating adenylate cyclase, catalyzing cAMP formation.