Question 1

A deficiency of dietary iodine would result in excessive TSH secretion.

Accepted Answer

A) True 
 B)False

Question 2

The stomach and small intestines release hormones to help coordinate activities with the autonomic nervous system for digestion.

Accepted Answer

A) True 
 B)False

Question 3

Most lipid-soluble hormones are derived from cholesterol.

Accepted Answer

A) True 
 B)False

Question 4

What is needed to control secretion of melatonin from the pineal gland?

Accepted Answer

A)  sympathetic stimulation from the suprachiasmatic nucleus of the hypothalamus
B)  activation of melanopsin from ganglion cells of the retina
C)  sunlight or lack of sunlight
D)  All apply.E) A) and B)
F) B) and D)

Question 5

Binding of epinephrine to beta-adrenergic receptors in the plasma membrane will activate the ______ second messenger system.

Accepted Answer

A)  calcium
B)  IP3
C)  adenylate cyclase (cAMP) 
D)  DAGE) A) and D)
F) A) and C)

Question 6

Activated calmodulin will,in turn,activate protein kinases.

Accepted Answer

A) True 
 B)False

Question 7

Purported beneficial effects of melatonin include all of the following EXCEPT

Accepted Answer

A)  limiting the effects of jet lag.
B)  treating insomnia.
C)  preventing oxidative damage to cells.
D)  increasing weight loss.E) A) and B)
F) A) and C)

Question 8

After menopause,the principal estrogen is estrone that is produced by the adrenal cortex.

Accepted Answer

A) True 
 B)False

Question 9

Steroid hormone influence on gene expression is known as

Accepted Answer

A)  genomic action.
B)  nongenomic action.
C)  dimerization.
D)  translocation.E) A) and D)
F) A) and C)

Question 10

Cortisol secretion would cease if the _________ no longer secreted ACTH.

Accepted Answer

A)  posterior pituitary gland
B)  hypothalamus
C)  anterior pituitary gland
D)  adrenal cortexE) C) and D)
F) All of the above

Question 11

Pineal gland production of melatonin is stimulated by the _______________ of the hypothalamus.

Accepted Answer

A)  supraoptic nuclei
B)  paraventricular nuclei
C)  suprachiasmatic nucleus
D)  None apply.E) A) and B)
F) C) and D)

Question 12

Testosterone receptors would be ____________ in response to anabolic steroid abuse

Accepted Answer

A)  inhibited
B)  primed
C)  upregulated
D)  downregulatedE) A) and B)
F) B) and D)

Question 13

Molecules secreted by endocrine glands that are inactive until changed by their target cells are

Accepted Answer

A)  prohormones.
B)  lipophilic hormones.
C)  prehormones.
D)  tissue hormones.E) None of the above
F) All of the above

Question 14

A deficiency of dietary cholesterol would decrease the production of

Accepted Answer

A)  glucagon.
B)  atrial natriuretic hormone.
C)  melatonin
D)  estradiol-17b.E) None of the above
F) A) and B)

Question 15

Which of the following is an effect of hyperthyroidism?

Accepted Answer

A)  accelerated growth
B)  rapid pulse
C)  increased plasma T4 levels
D)  All apply.E) B) and C)
F) C) and D)

Question 16

Which of the following directly initiates the release of calcium ions from the endoplasmic reticulum?

Accepted Answer

A)  G-proteins
B)  phospholipase C
C)  inositol triphosphate (IP3) 
D)  calmodulinE) B) and D)
F) A) and C)

Question 17

___________________ can form a goiter due to the presence of autoantibodies that exert TSH-like effects on the thyroid.

Accepted Answer

A)  Grave's disease
B)  Myxedema
C)  Cretinism
D)  Cushing's diseaseE) B) and C)
F) A) and D)

Question 18

Hormone receptors have a high capacity and a low affinity.

Accepted Answer

A) True 
 B)False

Question 19

The zona glomerulosa of the adrenal cortex secretes the mineralocorticoids.

Accepted Answer

A) True 
 B)False

Question 20

Melatonin has an extremely important role in the onset of human puberty.

Accepted Answer

A) True 
 B)False

Exam 11: Endocrine Glands: Secretion and Action of Hormones

A deficiency of dietary cholesterol would decrease the production of

Correct AnswerverifiedShow Answer

Which of the following is an effect of hyperthyroidism?

Correct AnswerverifiedShow Answer

Purported beneficial effects of melatonin include all of the following EXCEPT

Correct AnswerverifiedShow Answer

After menopause,the principal estrogen is estrone that is produced by the adrenal cortex.

Correct AnswerverifiedShow Answer

Testosterone receptors would be ____________ in response to anabolic steroid abuse

Correct AnswerverifiedShow Answer

Cortisol secretion would cease if the _________ no longer secreted ACTH.

Correct AnswerverifiedShow Answer

Hormone receptors have a high capacity and a low affinity.

Correct AnswerverifiedShow Answer

Which of the following directly initiates the release of calcium ions from the endoplasmic reticulum?

Correct AnswerverifiedShow Answer

The stomach and small intestines release hormones to help coordinate activities with the autonomic nervous system for digestion.

Correct AnswerverifiedShow Answer

___________________ can form a goiter due to the presence of autoantibodies that exert TSH-like effects on the thyroid.

Correct AnswerverifiedShow Answer

Melatonin has an extremely important role in the onset of human puberty.

Correct AnswerverifiedShow Answer

Binding of epinephrine to beta-adrenergic receptors in the plasma membrane will activate the ______ second messenger system.

Correct AnswerverifiedShow Answer

The zona glomerulosa of the adrenal cortex secretes the mineralocorticoids.

Correct AnswerverifiedShow Answer

What is needed to control secretion of melatonin from the pineal gland?

Correct AnswerverifiedShow Answer

Pineal gland production of melatonin is stimulated by the _______________ of the hypothalamus.

Correct AnswerverifiedShow Answer

Molecules secreted by endocrine glands that are inactive until changed by their target cells are

Correct AnswerverifiedShow Answer

Activated calmodulin will,in turn,activate protein kinases.

Correct AnswerverifiedShow Answer

A deficiency of dietary iodine would result in excessive TSH secretion.

Correct AnswerverifiedShow Answer

Steroid hormone influence on gene expression is known as

Correct AnswerverifiedShow Answer

Most lipid-soluble hormones are derived from cholesterol.

Correct AnswerverifiedShow Answer

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