Question 1

Parathyroid hormone stimulates the activity of bone-resorbing osteoblasts.

Accepted Answer

A) True 
 B)False

Question 2

In addition to a drop in blood calcium concentration, a symptom of hypoparathyroidism is

Accepted Answer

A)  a rise in vitamin D concentration.
B)  increased PTH secretion.
C)  muscle cramps.
D)  kidney stones.E) B) and D)
F) All of the above

Question 3

The central region of the adrenal gland is the adrenal ________.

Accepted Answer

The answer of The central region of the adrenal gland...

Question 4

"Endocrine" means

Accepted Answer

A)  hormone synthesis.
B)  internal secretion.
C)  acts upon target cells.
D)  fast-acting compound.E) All of the above
F) None of the above

Question 5

________ secretions affect the cell that secretes them.

Accepted Answer

The answer of ________ secretions affect the cell that secretes...

Question 6

Tropic hormones

Accepted Answer

A)  only function in the tropics.
B)  function in only one sex.
C)  stimulate certain endocrine glands to secrete hormones.
D)  block the actions of hormones that endocrine glands secrete.E) B) and C)
F) C) and D)

Question 7

Pheromones differ from hormones in that

Accepted Answer

A)  they are only found in plants and fungi.
B)  they act only within an individual.
C)  they are transmitted between members of the same species.
D)  they are transmitted between members of different species.E) A) and B)
F) None of the above

Question 8

A steroid hormone acts on a target cell by

Accepted Answer

A)  causing a second messenger to be formed.
B)  causing the cell to divide.
C)  promoting phagocytosis.
D)  directly causing protein synthesis.E) A) and B)
F) None of the above

Question 9

Norepinephrine and epinephrine are amines.

Accepted Answer

A) True 
 B)False

Question 10

Exocrine glands differ from endocrine glands in that exocrine glands

Accepted Answer

A)  secrete only into the bloodstream.
B)  secrete only local hormones.
C)  secrete through ducts or tubes to the body's exterior.
D)  only secrete salts.E) A) and D)
F) C) and D)

Question 11

A patient develops a cyst in the pars intermedia as a child which grows over time. The resulting shape of the cyst only puts significant pressure on the posterior lobe of the pituitary gland and causes defective hormonal production and secretion. Which of the following symptoms would you predict?

Accepted Answer

A)  The patient will suffer from the adverse effects of low estrogen levels and won't ovulate regularly.
B)  The patient will experience hypothyroidism, as the thyroid gland will not be stimulated to release its hormones.
C)  The patient will experience abnormal/high risk labor and may be forced to undergo a C-section instead of vaginal labor due to weak or missing contractions.
D)  The patient will experience muscle weakness and other effects of low protein production.E) A) and B)
F) None of the above

Question 12

All hormones are

Accepted Answer

A)  steroids.
B)  proteins.
C)  inorganic compounds.
D)  organic compounds.E) All of the above
F) A) and D)

Question 13

A hormone with an effect that lasts for days would have a

Accepted Answer

A)  short half-life.
B)  no half-life.
C)  long half-life.
D)  whole life.E) B) and D)
F) C) and D)

Question 14

Another name for antidiuretic hormone is

Accepted Answer

A)  intermedin.
B)  oxytocin.
C)  vasopressin.
D)  aldosterone.E) A) and B)
F) C) and D)

Question 15

As a result of the general stress response, blood concentrations of epinephrine

Accepted Answer

A)  rise and cortisol fall.
B)  fall and cortisol rise.
C)  and cortisol rise.
D)  and cortisol fall.E) C) and D)
F) All of the above

Question 16

If the thyroid were to develop abnormally and lack most of its extracellular folds, secretion of calcitonin would be severely below normal.

Accepted Answer

A) True 
 B)False

Question 17

Secretion of insulin causes

Accepted Answer

A)  a decrease in the concentration of blood glucose.
B)  a decrease in the permeability of cell membranes to glucose.
C)  an increase in the breakdown of glycogen to release glucose.
D)  an increase in the concentration of blood glucose.E) A) and B)
F) None of the above

Question 18

Estradiol is a type of estrogen whose hormone effects promote female sex characteristics. Its structure consists of various carbon-hydrogen rings and it is a lipid, but not a prostaglandin. Knowing the structure, how would you expect this hormone to cause a response in a target cell?

Accepted Answer

A)  Estradiol will bind to a receptor on the surface of its target cell, causing a secondary messenger to be activated.
B)  Estradiol will act as a second messenger in a receptor-mediated pathway after a primary messenger binds to a membrane receptor.
C)  Estradiol will enter the plasma membrane of a target cell directly and bind to an intercellular receptor, causing a change in gene expression.
D)  Estradiol will act as a paracrine signal and inactivate adenylate cyclase inside the cell, stopping production of cAMP.E) A) and B)
F) A) and C)

Question 19

Athletes abuse erythropoietin (EPO) because this hormone

Accepted Answer

A)  decreases the number of red blood cells.
B)  increases the number of white blood cells.
C)  increases the number of red blood cells.
D)  adds protein to plasma.E) All of the above
F) C) and D)

Question 20

Hormones that the posterior pituitary secretes are synthesized in the

Accepted Answer

A)  posterior pituitary.
B)  hypothalamus.
C)  thalamus.
D)  anterior pituitary.E) C) and D)
F) None of the above

Exam 13: Endocrine System

"Endocrine" means

Correct AnswerverifiedShow Answer

Exocrine glands differ from endocrine glands in that exocrine glands

Correct AnswerverifiedShow Answer

The central region of the adrenal gland is the adrenal ________.

Correct AnswerverifiedShow Answer

All hormones are

Correct AnswerverifiedShow Answer

A hormone with an effect that lasts for days would have a

Correct AnswerverifiedShow Answer

Another name for antidiuretic hormone is

Correct AnswerverifiedShow Answer

Parathyroid hormone stimulates the activity of bone-resorbing osteoblasts.

Correct AnswerverifiedShow Answer

As a result of the general stress response, blood concentrations of epinephrine

Correct AnswerverifiedShow Answer

Tropic hormones

Correct AnswerverifiedShow Answer

A patient develops a cyst in the pars intermedia as a child which grows over time. The resulting shape of the cyst only puts significant pressure on the posterior lobe of the pituitary gland and causes defective hormonal production and secretion. Which of the following symptoms would you predict?

Correct AnswerverifiedShow Answer

Norepinephrine and epinephrine are amines.

Correct AnswerverifiedShow Answer

Pheromones differ from hormones in that

Correct AnswerverifiedShow Answer

Secretion of insulin causes

Correct AnswerverifiedShow Answer

Estradiol is a type of estrogen whose hormone effects promote female sex characteristics. Its structure consists of various carbon-hydrogen rings and it is a lipid, but not a prostaglandin. Knowing the structure, how would you expect this hormone to cause a response in a target cell?

Correct AnswerverifiedShow Answer

________ secretions affect the cell that secretes them.

Correct AnswerverifiedShow Answer

In addition to a drop in blood calcium concentration, a symptom of hypoparathyroidism is

Correct AnswerverifiedShow Answer

If the thyroid were to develop abnormally and lack most of its extracellular folds, secretion of calcitonin would be severely below normal.

Correct AnswerverifiedShow Answer

Athletes abuse erythropoietin (EPO) because this hormone

Correct AnswerverifiedShow Answer

Hormones that the posterior pituitary secretes are synthesized in the

Correct AnswerverifiedShow Answer

A steroid hormone acts on a target cell by

Correct AnswerverifiedShow Answer

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