Reproductive Endocrinology Practice Quiz Flashcards
_______ act exclusively through cell-surface receptors.
A) Estrogen, progesterone, and testosterone
B) Relaxin, hCG, and estrogen
C) GnRH, FSH, and LH
D) Prolactin, progesterone, and prostaglandin
C
What is called a hormone of darkness?
Melatonin
What are peptide hormones synthesized in?
ribosomes
Choose the best TWO answers: ______ and ______ are gonadal steroids.
A) estrogen
B) progesterone
C) relaxin
D) activin
E) inhibin
F) follistatin
Estrogen and progesterone
Choose the best two answers: ______ and ______ are anterior pituitary hormones.
A) GnRH
B) FSH
C) LH
D) ADH
E) GHRH
F) CRH
FSH and LH
Choose the best two answers: all of the following about hormones are correct except ______ and ______.
A) hormones are released by one cell to act on a target cell
B) hormones are released via ducts into the bloodstream
C) nervous stimulation can release hormones
D) GnRH can freely circulate in the blood.
E) progesterone can freely circulate in the blood
F) steroid hormones are eliminated through feces and/or urine
B (endocrine glands don’t have ducts, but exocrine glands do)
E (progesterone is a steroid, so it gets bound to transport proteins)
True or false: Hormone agonists have greater affinity for the hormone receptor but promote weaker biologic activity than native hormone.
False; that’s antagonists
True or false: Cyclic adenosine monophosphate is a second messenger
True
True or false: a receptor is a protein molecule inside the target cell or on its surface that receives a chemical signal
True
Match the hormone to its biochemical nature.
A) Oxytocin
B) Prolactin
C) LH
D) Estrogen
E) Prostaglandins
Steroid
Fatty acid derivative
Peptide
Glycoprotein
Protein
A) Oxytocin - peptide
B) Prolactin - protein
C) LH - glycoprotein
D) Estrogen - steroid
E) Prostaglandins - fatty acid derivative
