1. True endocrine gland of epithelial origin
a. peptide gland
b. steroid hormone
c. amino acid-derived hormone
d. anterior pituitary
e. hypothalamus
f. posterior pituitary: d. anterior pituitary
2. How are hormones different from other signaling molecules, such as paracrine or
autocrine signaling molecules?
a. Hormones bind to receptors on the cell surface.
b. Hormones are nucleotides, while other signals are peptides or lipids.
c. Hormones are secreted into the bloodstream.
d. Hormones act when they are in high concentrations: C. Hormones are secret- ed into the
bloodstream
3. Steroid hormones are
synthesized in the of the cell.
a. nucleus
b. mitochondria
c. smooth endoplasmic reticulum
d. Golgi apparatus
e. rough endoplasmic reticulum: C. smooth endoplasmic reticulum
4. A new chemical signal is discovered. It is secreted in low concentra- tions from
keratinocytes in the skin, and it binds to receptors on nearby
melanocytes in the skin. Can this chemical signal be classified as a hormone?
a. No, because it does not travel to distant targets through the blood
b. Yes, because it is secreted from a group of cells
c. No, because it is a chemical signal
d. Yes, because it has effects at low concentrations: a. No, because it does not travel to distant
targets through the blood.
5. derivatives of tyrosine
a. peptide hormone
b. steroid hormone
c. amino acid-derived hormone
For assistance with your assignments contact
, Biology 3200 Exam 1 Review | Updated in july !1
d. anterior pituitary
e. hypothalamus
f. posterior pituitary: c. amino acid-derived hormone
6. The pituitary hormone that stimulates cell growth and metabolism in many tissues is
a. MSH.
b. insulin.
For assistance with your assignments contact
, Biology 3200 Exam 1 Review | Updated in july !1
c. prolactin.
d. ACTH.
e. somatotropin.: e. somatotropin.
7. Which hormone is NOT an amino acid derivative?
a. thyroid hormone
b. epinephrine
c. melatonin
d. norepinephrine
e. thyroid-stimulating hormone: e. thyroid-stimulating hormone
8. Which of the following is a similarity between peptide and steroid hor- mones?
a. Both travel through the blood to bind receptors on target cells.
b. Both bind to intracellular receptors.
c. Both are lipophilic.
d. Both are made from amino acids.: a. Both travel through the blood to bind receptors on
target cells.
9. Different hormones may interact with each other at a target cell. Which of the following is NOT
considered to be a type of hormone interaction?
a. Permissiveness
b. Synergism
c. Transportation
d. Antagonism: c. Transportation
10. Match each hormone with its primary source: thyroid
a. prolactin
b. insulin
c. aldosterone
d. melatonin
e. calcitonin
f. epinephrine: e. calcitonin
11. Which of the following is a peptide hormone?
a. Calcitonin
b. Epinephrine
c. Melatonin
For assistance with your assignments contact
, Biology 3200 Exam 1 Review | Updated in july !1
d. Aldosterone: a. Calcitonin
12. Why do some normal cells fail to respond to a chemical signal?
a. Some cells lack the appropriate receptors.
b. Chemical signals are only delivered to specific cells.
c. Some cells are completely without receptors.
d. Signal chemicals often break down before reaching a distant target.
For assistance with your assignments contact