Question 1

What hormone stimulates milk production in mammals?

Accepted Answer

A)  aldosterone
B)  melatonin
C)  prolactin
D)  luteinizing hormoneE) A) and C)
F) A) and B)

Question 2

Which of the following hormones is NOT produced by the adrenal gland?

Accepted Answer

A)  epinephrine
B)  cortisol
C)  prolactin
D)  aldosteroneE) A) and B)
F) A) and C)

Question 3

At the breakfast table, your roommate says, "Oops! I forgot to take my melatonin last night.I'd better take it now." How do you respond?

Accepted Answer

A)  "Good idea -- you don't want your bones to get brittle."
B)  "Be sure not to take too much, or your blood sugar could get dangerously low."
C)  "Don't take it now - it regulates biological rhythms, and is normally high at night and low during the day."
D)  "Don't take it after a meal - it promotes the 'fight-or-flight' response, not 'rest-and-digest'."E) C) and D)
F) B) and D)

Question 4

A new hormone is discovered.Tests reveal that it is small, hydrophilic, and degraded by a protease.What type of hormone is it?

Accepted Answer

A)  peptide
B)  amino acid derivative
C)  steroid
D)  glucocorticoidE) A) and C)
F) A) and B)

Question 5

Estrogen and testosterone are steroid hormones that differ by only a few atoms.The different receptor binding properties those differences confer allow the hormones to do what during development?

Accepted Answer

A)  Cause differential maturation of the prefrontal cortex during late adolescence.
B)  Cause a slight increase in muscle mass in females versus males.
C)  Make females naturally attracted to pink and males to blue.
D)  Control development of all sex-specific physical traits including sex organs, body hair, and breasts.E) C) and D)
F) None of the above

Question 6

What hormone stimulates the milk-ejection reflex?

Accepted Answer

A)  antidiuretic hormone
B)  oxytocin
C)  vasopressin
D)  parathyroid hormoneE) None of the above
F) A) and B)

Question 7

Lampreys completely lack parathyroid glands.Suggest why these glands may be important for other vertebrates, but not for jawless fish.

Accepted Answer

A)  Because they are parasitic, lampreys get plenty of calcium from their hosts.
B)  Living in the ocean, they are surrounded by large amounts of sodium, chloride, and magnesium ions.
C)  Jawless fish employ a different system than other vertebrates to regulate blood sugar.
D)  Since they have a cartilaginous skeleton but not true bone, they have less need to regulate calcium levels.E) B) and D)
F) B) and C)

Question 8

You are a professor supervising first year medical students.One student is examining the adrenal gland of his cadaver."Wow!" he exclaims, "This person must have had an endocrine problem.Their adrenal gland lacks any kind of duct connecting it to the bloodstream.The hormones could only have oozed out." How do you respond?

Accepted Answer

A)  "That makes their adrenal gland similar to an exocrine organ."
B)  "Do you see signs of adrenal insufficiency, such as low fat stores or muscle degeneration?"
C)  "That's normal.The hormones ooze out and diffuse into nearby capillaries, which is why endocrine glands are sometimes called 'ductless glands'."
D)  "Look carefully and you will see the nerves that transport the hormones into the bloodstream."E) A) and B)
F) A) and C)

Question 9

A novel disease causes destruction of the adrenal glands.If a patient with this disease failed to receive aldosterone replacement therapy, what would result?

Accepted Answer

A)  death
B)  diminished cognitive function
C)  infertility in both men and women
D)  poor blood sugar regulationE) A) and B)
F) C) and D)

Question 10

What is the primary function of the hormone ADH?

Accepted Answer

A)  regulates biological rhythms
B)  mediates adaptation to long term stress
C)  stimulates bone breakdown
D)  conserves water by stimulating its reabsorption from urineE) All of the above
F) A) and B)

Question 11

Which is the best explanation for how ibuprofen works?

Accepted Answer

A)  It thins the blood to relieve joint pain.
B)  It inhibits cyclooxygenase-2, which is needed to produce prostaglandins.
C)  It activates cyclooxygenase-2, which then produces more prostaglandins.
D)  It down-regulates the production of substance P.E) All of the above
F) C) and D)

Question 12

Which of the following is a paracrine regulator that affects almost every organ in the body?

Accepted Answer

A)  insulin
B)  testosterone
C)  prostaglandin
D)  gonadotropinE) A) and B)
F) A) and C)

Question 13

The ________ lobe of the pituitary gland appears fibrous because it contains axons originating from hypothalamic neurons.

Accepted Answer

A)  anterior
B)  posterior
C)  superior
D)  inferiorE) B) and D)
F) B) and C)

Question 14

How could you improve your experiment?

Accepted Answer

A)  Apply the hormone to mouse cell culture.
B)  Apply the hormone at a concentration of 0.5M.
C)  Hydrolyze the hormone before application.
D)  Add ATP as a cofactor.E) None of the above
F) C) and D)

Question 15

Which hormone is secreted by alpha cells of the pancreas in response to hypoglycemia?

Accepted Answer

A)  glucagon
B)  insulin
C)  glucose
D)  cortisolE) B) and C)
F) A) and B)

Question 16

ACTH stands for adrenocorticotropic hormone, but it is produced in the anterior pituitary.What is the basis of this name?

Accepted Answer

A)  It is expressed most highly in tropical climates.
B)  It stimulates the adrenal cortex.
C)  It signals to the kidneys to reabsorb water.
D)  It stimulates appetite by acting on the cerebral cortex.E) A) and B)
F) A) and C)

Question 17

Oxytocin is a peptide hormone that causes uterine contractions in childbirth and stimulates milk secretion from nipples.Do men have oxytocin?

Accepted Answer

The answer of Oxytocin is a peptide hormone that causes...

Question 18

What is the difference between the endocrine system and the autonomic nervous system?

Accepted Answer

A)  The endocrine system employs chemical signals only, while the autonomic nervous system involves a combination of electrical and chemical signals.
B)  The autonomic nervous system promotes "fight or flight" functions, while the endocrine system promotes "rest and digest" functions.
C)  Norepinephrine is produced by the autonomic nervous system, while epinephrine is produced by the endocrine system.
D)  The axons of neurons of the endocrine system travel a shorter distance than those of the autonomic nervous system.E) B) and C)
F) A) and C)

Question 19

The use of bovine growth hormone (BGH)  to increase milk yield in dairy cows is highly controversial.What other hormone is regularly added to milk, yet causes little controversy?

Accepted Answer

A)  vitamin A
B)  vitamin D
C)  MSG
D)  preservativesE) A) and B)
F) A) and C)

Question 20

Which of the following is NOT a function of oxytocin?

Accepted Answer

A)  pair bonding
B)  milk-ejection reflex
C)  milk production
D)  uterine contractionsE) All of the above
F) None of the above

Exam 45: The Endocrine System

Which is the best explanation for how ibuprofen works?

Correct Answer
verified

How could you improve your experiment?

Correct Answer
verified

Correct Answer
verified

Which of the following is NOT a function of oxytocin?

Correct Answer
verified

Estrogen and testosterone are steroid hormones that differ by only a few atoms.The different receptor binding properties those differences confer allow the hormones to do what during development?

Correct Answer
verified

A novel disease causes destruction of the adrenal glands.If a patient with this disease failed to receive aldosterone replacement therapy, what would result?

Correct Answer
verified

The use of bovine growth hormone (BGH) to increase milk yield in dairy cows is highly controversial.What other hormone is regularly added to milk, yet causes little controversy?

Correct Answer
verified

ACTH stands for adrenocorticotropic hormone, but it is produced in the anterior pituitary.What is the basis of this name?

Correct Answer
verified

What hormone stimulates milk production in mammals?

Correct Answer
verified

Which of the following is a paracrine regulator that affects almost every organ in the body?

Correct Answer
verified

Oxytocin is a peptide hormone that causes uterine contractions in childbirth and stimulates milk secretion from nipples.Do men have oxytocin?

Correct Answer
verified

What is the primary function of the hormone ADH?

Correct Answer
verified

Which of the following hormones is NOT produced by the adrenal gland?

Correct Answer
verified

Lampreys completely lack parathyroid glands.Suggest why these glands may be important for other vertebrates, but not for jawless fish.

Correct Answer
verified

What hormone stimulates the milk-ejection reflex?

Correct Answer
verified

At the breakfast table, your roommate says, "Oops! I forgot to take my melatonin last night.I'd better take it now." How do you respond?

Correct Answer
verified

What is the difference between the endocrine system and the autonomic nervous system?

Correct Answer
verified

A new hormone is discovered.Tests reveal that it is small, hydrophilic, and degraded by a protease.What type of hormone is it?

Correct Answer
verified

The ________ lobe of the pituitary gland appears fibrous because it contains axons originating from hypothalamic neurons.

Correct Answer
verified

Which hormone is secreted by alpha cells of the pancreas in response to hypoglycemia?

Correct Answer
verified

Exam 45: The Endocrine System

Which is the best explanation for how ibuprofen works?

Correct AnswerverifiedShow Answer

How could you improve your experiment?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Which of the following is NOT a function of oxytocin?

Correct AnswerverifiedShow Answer

Estrogen and testosterone are steroid hormones that differ by only a few atoms.The different receptor binding properties those differences confer allow the hormones to do what during development?

Correct AnswerverifiedShow Answer

A novel disease causes destruction of the adrenal glands.If a patient with this disease failed to receive aldosterone replacement therapy, what would result?

Correct AnswerverifiedShow Answer

The use of bovine growth hormone (BGH) to increase milk yield in dairy cows is highly controversial.What other hormone is regularly added to milk, yet causes little controversy?

Correct AnswerverifiedShow Answer

ACTH stands for adrenocorticotropic hormone, but it is produced in the anterior pituitary.What is the basis of this name?

Correct AnswerverifiedShow Answer

What hormone stimulates milk production in mammals?

Correct AnswerverifiedShow Answer

Which of the following is a paracrine regulator that affects almost every organ in the body?

Correct AnswerverifiedShow Answer

Oxytocin is a peptide hormone that causes uterine contractions in childbirth and stimulates milk secretion from nipples.Do men have oxytocin?

Correct AnswerverifiedShow Answer

What is the primary function of the hormone ADH?

Correct AnswerverifiedShow Answer

Which of the following hormones is NOT produced by the adrenal gland?

Correct AnswerverifiedShow Answer

Lampreys completely lack parathyroid glands.Suggest why these glands may be important for other vertebrates, but not for jawless fish.

Correct AnswerverifiedShow Answer

What hormone stimulates the milk-ejection reflex?

Correct AnswerverifiedShow Answer

At the breakfast table, your roommate says, "Oops! I forgot to take my melatonin last night.I'd better take it now." How do you respond?

Correct AnswerverifiedShow Answer

What is the difference between the endocrine system and the autonomic nervous system?

Correct AnswerverifiedShow Answer

A new hormone is discovered.Tests reveal that it is small, hydrophilic, and degraded by a protease.What type of hormone is it?

Correct AnswerverifiedShow Answer

The ________ lobe of the pituitary gland appears fibrous because it contains axons originating from hypothalamic neurons.

Correct AnswerverifiedShow Answer

Which hormone is secreted by alpha cells of the pancreas in response to hypoglycemia?

Correct AnswerverifiedShow Answer

Correct Answer
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verified

Correct Answer
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Correct Answer
verified

Correct Answer
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verified

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verified

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verified

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