Question

Which of the following types of hormones are primarily lipid soluble and bind to nuclear receptors to elicit their effects?

A.Monoamines

B.Steroids

C.Peptides

D.Mineral corticoids

If the action of one hormone permits a second hormone to perform it’s function, the two hormones are said to be?

A.Synergistic

B.Agonist

C.Antagonistic

D.Permissive

Which of the following is/are (an) example(s) of a Neurohypophysis pathway(s)?

A.Growth Hormone Axis

B.ADH Axis

C.Oxytocin Axis

D.Cortisol Axis

E.Both A + B

F.Both B + C

Which of the following is an effect of oxytocin?

A.Causes uterine contractions

B.Promotes lactation

C.Is a diuretic

D.Both A and B

E.Both A and C

What is the effect of ADH?

Answer 1

1. Answer for the question id (B) Steroids. They are lipids. They can pass through the cell membranes as they are fat soluble and then bind to steroid hormone receptor, which may be nuclear or cytosolic depending on steroid hormone.

2. (B) Agonist. Definition itself says that, an agonist is a chemical that binds to a receptor and activates the receptor to produce a biological response.

3. Example of the neurohypophysis pathway are ADH Axis and Oxytocin Axis, so the answer is (F) B+C.

4. Effect of oxytocin are to promote uterine contraction and to promote lactation so the answer is (D) A+B.