Question 1

Which hormone is involved in maintaining the gamete or egg cell in females?

Accepted Answer

A)   estradiol
B)   progesterone
C)   gonadotropin-releasing hormone
D)   follicle-stimulating and luteinizing hormones
E)   All of the choices are correct.F) B) and D)
G) A) and B)

Question 2

All of the following hormones are lipids derived from cholesterol EXCEPT

Accepted Answer

A)   melatonin.
B)   estradiol.
C)   cortisol.
D)   aldosterone.
E)   testosterone.F) C) and E)
G) A) and E)

Question 3

Gonadotropin-releasing hormone regulates

Accepted Answer

A)   follicle-stimulating hormone.
B)   luteinizing hormone.
C)   steroid production by the gonads.
D)   both follicle-stimulating and luteinizing hormones.
E)   both follicle-stimulating and luteinizing hormones as well as steroid production by the gonads.F) B) and D)
G) A) and E)

Question 4

Glucocorticoids (i.e., cortisol, prednisolone, dexamethasone) have a diverse number of functions. They include glucose mobilization during stress, development of lung tissue, and therapies to reduce inflammation.

Accepted Answer

A) True 
 B)False

Question 5

When blood sodium levels fall, which hormone promotes sodium retention by the kidney in mammals?

Accepted Answer

A)   cortisol
B)   aldosterone
C)   estrogen
D)   antidiuretic hormone
E)   testosteroneF) B) and E)
G) None of the above

Question 6

Based on phylogenetic analyses of the mineralcorticoid and glucocorticoid receptors and the presence or absence of their ligands (glucocorticoids and aldosterone) in certain vertebrates, it would appear that hormones always evolve prior to their receptors.

Accepted Answer

A) True 
 B)False

Question 7

The primary hormone producing organ important to the "fight-or-flight" response is the

Accepted Answer

A)   thyroid gland.
B)   adrenal gland.
C)   gonad.
D)   heart.
E)   pituitary gland.F) A) and E)
G) C) and D) B

Question 8

Which of the following is an amine hormone important in the stress response in vertebrates?

Accepted Answer

A)   dopamine
B)   melatonin
C)   cortisol
D)   epinephrine
E)   serotoninF) A) and E)
G) A) and D)

Question 9

Goiter is a disease characterized by an enlarged thyroid gland. Which of the following either leads to or is an outcome of the disease?

Accepted Answer

A)   iodine deficiency in the diet
B)   reduced levels of T3 in the blood
C)   reduced levels of T4 in the blood
D)   excessive thyroid-stimulating hormone production
E)   All of the choices are correct.F) C) and D)
G) All of the above

Question 10

The pathological disorders associated with type I diabetes results from the inability to

Accepted Answer

A)   produce pancreatic insulin.
B)   counteract rises in blood glucose levels.
C)   counteract drops in blood glucose levels.
D)   produce pancreatic insulin to counteract rises in blood glucose levels.
E)   produce pancreatic insulin to counteract drops in blood glucose levels.F) A) and B)
G) A) and D)

Question 11

Which hormone is inhibited by hypothalamic somatostatin and can be used to treat short stature in children?

Accepted Answer

A)   insulin-like growth factor I
B)   testosterone
C)   estradiol
D)   cortisol
E)   growth hormoneF) A) and D)
G) A) and C)

Question 12

Which of the following is NOT true of a stress or "fight-or-flight" response?

Accepted Answer

A)   Energy stores such as adipose tissue and glycogen are broken down to mobilize fatty acids and glucose.
B)   The heart rate increases and airways are dilated to promote maximum oxygen intake.
C)   Elevations in cortisol are needed to increase glucose.
D)   Catabolic hormones are activated.
E)   Leptin levels are increased to enhance appetite.F) A) and C)
G) A) and B)

Question 13

Which of the following is likely NOT to be a mechanism for controlling hormone levels in the blood?

Accepted Answer

A)   Alter the rate of synthesis and subsequent release of hormone into the blood.
B)   Change the rate at which an enzyme produces the hormone.
C)   Modify the structure of the hormone at its point of production so it no longer binds its receptor.
D)   Alter the rate at which the hormone is removed from the blood.
E)   Change the rate at which the hormone is excreted into the urine.F) D) and E)
G) A) and B) C

Question 14

A person who has a constant need to eat may show impaired secretion of or response to

Accepted Answer

A)   growth hormone
B)   insulin
C)   thyroid hormone
D)   leptin
E)   thyroid-stimulating hormoneF) C) and D)
G) B) and D)

Question 15

Which hormones are likely to counteract each other in sodium homeostasis?

Accepted Answer

A)   parathyroid hormone and atrial natriuretic peptide
B)   atrial natriuretic petide and aldosterone
C)   aldosterone and cortisol
D)   atrial natriuretic peptide and cortisol
E)   antidiuretic hormone and cortisolF) B) and C)
G) A) and C)

Question 16

What two hormones secreted from the pancreas maintain glucose homeostasis in vertebrates?

Accepted Answer

A)   insulin and glucagon
B)   epinephrine and glucagon
C)   epinephrine and insulin
D)   cortisol and glucagon
E)   cortisol and insulinF) C) and E)
G) A) and C) A

Question 17

It would be reasonable to assume that environmental cues such as photoperiod and temperature might regulate animal reproduction.

Accepted Answer

A) True 
 B)False

Question 18

Metamorphosis in flatfishes and in amphibians is controlled by growth hormone.

Accepted Answer

A) True 
 B)False

Question 19

If blood sodium levels rise sharply above normal limits the heart will release more atrial natriuretic peptide.

Accepted Answer

A) True 
 B)False

Question 20

What might occur if blood calcium levels rise?

Accepted Answer

A)   Blood parathyroid hormone levels would decrease.
B)   Blood parathyroid hormone levels would increase.
C)   Blood vitamin D (1,25 dihydroxyvitamin 
D)   would be stimulated.
D)   Blood calcium levels are not under control by hormones.
E)   Vitamin D would be converted to vitamin E.F) B) and C)
G) C) and E)

Exam 50: Endocrine Systems

Which hormone is involved in maintaining the gamete or egg cell in females?

Correct AnswerverifiedShow Answer

All of the following hormones are lipids derived from cholesterol EXCEPT

Correct AnswerverifiedShow Answer

Gonadotropin-releasing hormone regulates

Correct AnswerverifiedShow Answer

Glucocorticoids (i.e., cortisol, prednisolone, dexamethasone) have a diverse number of functions. They include glucose mobilization during stress, development of lung tissue, and therapies to reduce inflammation.

Correct AnswerverifiedShow Answer

When blood sodium levels fall, which hormone promotes sodium retention by the kidney in mammals?

Correct AnswerverifiedShow Answer

Based on phylogenetic analyses of the mineralcorticoid and glucocorticoid receptors and the presence or absence of their ligands (glucocorticoids and aldosterone) in certain vertebrates, it would appear that hormones always evolve prior to their receptors.

Correct AnswerverifiedShow Answer

The primary hormone producing organ important to the "fight-or-flight" response is the

Correct AnswerverifiedB

Which of the following is an amine hormone important in the stress response in vertebrates?

Correct AnswerverifiedShow Answer

Goiter is a disease characterized by an enlarged thyroid gland. Which of the following either leads to or is an outcome of the disease?

Correct AnswerverifiedShow Answer

The pathological disorders associated with type I diabetes results from the inability to

Correct AnswerverifiedShow Answer

Which hormone is inhibited by hypothalamic somatostatin and can be used to treat short stature in children?

Correct AnswerverifiedShow Answer

Which of the following is NOT true of a stress or "fight-or-flight" response?

Correct AnswerverifiedShow Answer

Which of the following is likely NOT to be a mechanism for controlling hormone levels in the blood?

Correct AnswerverifiedC

A person who has a constant need to eat may show impaired secretion of or response to

Correct AnswerverifiedShow Answer

Which hormones are likely to counteract each other in sodium homeostasis?

Correct AnswerverifiedShow Answer

What two hormones secreted from the pancreas maintain glucose homeostasis in vertebrates?

Correct AnswerverifiedA

It would be reasonable to assume that environmental cues such as photoperiod and temperature might regulate animal reproduction.

Correct AnswerverifiedShow Answer

Metamorphosis in flatfishes and in amphibians is controlled by growth hormone.

Correct AnswerverifiedShow Answer

If blood sodium levels rise sharply above normal limits the heart will release more atrial natriuretic peptide.

Correct AnswerverifiedShow Answer

What might occur if blood calcium levels rise?

Correct AnswerverifiedShow Answer

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B

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C

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A

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