Question 1

Melanocyte-stimulating hormone, which regulates the formation of melanin, is produced by the

Accepted Answer

A)   intermediate lobe of the pituitary gland.
B)   anterior lobe of the pituitary gland.
C)   pineal gland.
D)   the hypothalamus.E) All of the above
F) B) and D)

Question 2

An autocrine secretion affects cells far away.

Accepted Answer

A) True 
 B)False

Question 3

The nervous system releases hormones at synapses and the endocrine system releases neurotransmitters into the bloodstream.

Accepted Answer

A) True 
 B)False

Question 4

The target cells of releasing hormones are in the anterior pituitary gland.

Accepted Answer

A) True 
 B)False

Question 5

A hormone is a secreted molecule that is carried in the bloodstream to where it acts on target cells that bear specific receptors for that hormone.

Accepted Answer

A) True 
 B)False

Question 6

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) None of the above
F) A) and C)

Question 7

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) All of the above
F) A) and B)

Question 8

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) None of the above
F) A) and C)

Question 9

An upregulated cell has an increase in

Accepted Answer

A)   the amount of DNA in the nucleus.
B)   the number of molecules the cell secretes.
C)   the concentration of ligands that bind to the receptors.
D)   the number of receptors available for binding.E) B) and D)
F) A) and D)

Question 10

A hormone is a ______ and the target cell is __________.

Accepted Answer

A)   protein that stimulates other cells; the source of hormone secretions
B)   regulatory molecule that controls secretions of other cells; a cell that synthesizes hormones
C)   molecule that has a metabolic effect on another cell; a cell that has receptors for specific hormones
D)   molecule; a cell that does not have receptorsE) B) and C)
F) A) and D)

Question 11

Cortisol is useful in controlling inflammation reactions because it

Accepted Answer

A)   decreases the permeability of capillaries.
B)   increases synthesis of prostaglandins.
C)   destabilizes lysosomal membranes.
D)   decreases blood flow.E) A) and B)
F) B) and D)

Question 12

Oxytocin is administered to women following childbirth to stimulate

Accepted Answer

A)   less milk production.
B)   uterine contractions.
C)   uterine relaxation.
D)   ACTH production.E) A) and B)
F) A) and C)

Question 13

Which of the following has both endocrine and exocrine functions?

Accepted Answer

A)   Pancreas
B)   Anterior pituitary
C)   Liver
D)   Thyroid glandE) C) and D)
F) A) and D)

Question 14

Hormones

Accepted Answer

A)   regulate metabolism.
B)   have functions in growth, reproduction, and development.
C)   help regulate water and electrolyte balance and blood pressure.
D)   do all of the above.E) A) and B)
F) None of the above

Question 15

Norepinephrine and epinephrine are amines.

Accepted Answer

A) True 
 B)False

Question 16

All hormones are

Accepted Answer

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

Question 17

Addison disease

Accepted Answer

A)   lowers blood pressure.
B)   decreases blood sodium levels.
C)   increases blood potassium levels.
D)   all of the above.E) A) and B)
F) B) and C)

Question 18

Oxytocin stimulates the kidneys to conserve water.

Accepted Answer

A) True 
 B)False

Question 19

Growth hormone

Accepted Answer

A)   enhances the movement of amino acids into cells.
B)   increases the rate of protein synthesis.
C)   increases the rate of fat metabolism.
D)   all of the above.E) A) and D)
F) B) and C)

Question 20

Maxwell has a very high metabolic rate, is skinny, and has protruding eyes. These are symptoms of

Accepted Answer

A)   hypothyroidism.
B)   hyperthyroidism.
C)   hypoparathyroidism.
D)   hyperparathyroidism.E) All of the above
F) C) and D)

Exam 13: Endocrine System

Norepinephrine and epinephrine are amines.

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An autocrine secretion affects cells far away.

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Oxytocin stimulates the kidneys to conserve water.

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Maxwell has a very high metabolic rate, is skinny, and has protruding eyes. These are symptoms of

Correct AnswerverifiedShow Answer

Exocrine glands differ from endocrine glands in that exocrine glands

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A hormone is a ______ and the target cell is __________.

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Secretion of insulin causes

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Which of the following has both endocrine and exocrine functions?

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

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Hormones

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An upregulated cell has an increase in

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All hormones are

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Addison disease

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The nervous system releases hormones at synapses and the endocrine system releases neurotransmitters into the bloodstream.

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The target cells of releasing hormones are in the anterior pituitary gland.

Correct AnswerverifiedShow Answer

A hormone is a secreted molecule that is carried in the bloodstream to where it acts on target cells that bear specific receptors for that hormone.

Correct AnswerverifiedShow Answer

Melanocyte-stimulating hormone, which regulates the formation of melanin, is produced by the

Correct AnswerverifiedShow Answer

Growth hormone

Correct AnswerverifiedShow Answer

Oxytocin is administered to women following childbirth to stimulate

Correct AnswerverifiedShow Answer

Cortisol is useful in controlling inflammation reactions because it

Correct AnswerverifiedShow Answer

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A hormone is a and the target cell is ____.

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