Question 1

___________________ 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) C) and D)
F) B) and C)

Question 2

What is produced when two diiodotyrosine molecules couple together?

Accepted Answer

A)  triiodothyronine
B)  tetriodothyronine
C)  thyroxine
D)  Both tetraiodotyronine and thyroxine are correct.E) None of the above
F) A) and B)

Question 3

Steroid hormone receptors may be found

Accepted Answer

A)  in the cytoplasm.
B)  in the nucleus.
C)  on the cell surface.
D)  Both in the cytoplasm and in the nucleus.E) C) and D)
F) A) and C)

Question 4

Which of the following is the most senior precursor molecule?

Accepted Answer

A)  a prehormone
B)  a prohormone
C)  a hormone
D)  a hormone receptorE) B) and C)
F) A) and B)

Question 5

Inhibition of phosphodiesterase would potentially increase the effects of hormones that activate adenylate cyclase.

Accepted Answer

A) True 
 B)False

Question 6

Activated calmodulin will,in turn,activate protein kinases.

Accepted Answer

A) True 
 B)False

Question 7

Prolonged stress may stimulate

Accepted Answer

A)  symptoms similar to Cushing's syndrome.
B)  increased resistance to disease.
C)  adrenal gland atrophy
D)  no apparent physiological changes.E) A) and B)
F) None of the above

Question 8

Oxytocin synthesis occurs in the neurohypophysis.

Accepted Answer

A) True 
 B)False

Question 9

Cycles of physiological activity that follow a 24-hour pattern are called

Accepted Answer

A)  circadian rhythms.
B)  biomemetic rhythms.
C)  psychological rhythms.
D)  cerebral rhythms.E) B) and D)
F) B) and C)

Question 10

Melatonin is secreted by the pineal gland due to parasympathetic stimulation.

Accepted Answer

A) True 
 B)False

Question 11

Which of the following is NOT one of the three functional categories of corticosteroids?

Accepted Answer

A)  mineralocorticoids
B)  glucocorticoids
C)  thyrocorticoids
D)  sex steroidsE) A) and B)
F) B) and D)

Question 12

Thyroid hormones bind to receptors which

Accepted Answer

A)  activate tyrosine kinase.
B)  regulate gene transcription.
C)  stimulate production of cyclic AMP.
D)  stimulate production of diacylglycerol.E) B) and D)
F) None of the above

Question 13

Diabetes mellitus occurs due to lack of liver beta-cell function.

Accepted Answer

A) True 
 B)False

Question 14

Where is oxytocin produced?

Accepted Answer

A)  hypothalamus
B)  pineal gland
C)  anterior pituitary gland
D)  posterior pituitary glandE) B) and D)
F) A) and B)

Question 15

Which of the following is NOT a role of glucagon in blood glucose homeostasis?

Accepted Answer

A)  raises blood glucose levels
B)  stimulates glycogenolysis and gluconeogenesis in the liver
C)  promotes lipolysis and ketogenesis
D)  promotes the movement of glucose out of skeletal muscle cellsE) A) and B)
F) A) and C)

Question 16

The posterior pituitary gland produces two hormones.

Accepted Answer

A) True 
 B)False

Question 17

What is the precursor molecule for the three types of adrenal cortex hormones?

Accepted Answer

A)  vitamin A
B)  vitamin K
C)  adenosine
D)  cholesterolE) C) and D)
F) B) and D)

Question 18

What are the carrier proteins for glucose diffusion into cells?

Accepted Answer

A)  insulin
B)  GLUT4
C)  GLUT2
D)  glucagonE) B) and C)
F) A) and B)

Question 19

A deficiency of dopamine would allow the production of prolactin.

Accepted Answer

A) True 
 B)False

Question 20

Which of the following is NOT true about a chemical functioning in physiological regulation

Accepted Answer

A)  There must be a mechanism to turn off the chemical's action.
B)  The chemicals must be secreted by endocrine glands.
C)  Target cell must have specific receptor molecules for the chemical.
D)  The combination of the chemical and its receptor must cause specific changes to occur in the target cell.E) A) and B)
F) A) and C)

Exam 11: Endocrine Glands: Secretion and Action of Hormones

Inhibition of phosphodiesterase would potentially increase the effects of hormones that activate adenylate cyclase.

Correct AnswerverifiedShow Answer

Melatonin is secreted by the pineal gland due to parasympathetic stimulation.

Correct AnswerverifiedShow Answer

Prolonged stress may stimulate

Correct AnswerverifiedShow Answer

What is produced when two diiodotyrosine molecules couple together?

Correct AnswerverifiedShow Answer

The posterior pituitary gland produces two hormones.

Correct AnswerverifiedShow Answer

Steroid hormone receptors may be found

Correct AnswerverifiedShow Answer

What is the precursor molecule for the three types of adrenal cortex hormones?

Correct AnswerverifiedShow Answer

Which of the following is the most senior precursor molecule?

Correct AnswerverifiedShow Answer

Diabetes mellitus occurs due to lack of liver beta-cell function.

Correct AnswerverifiedShow Answer

Thyroid hormones bind to receptors which

Correct AnswerverifiedShow Answer

What are the carrier proteins for glucose diffusion into cells?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which of the following is NOT a role of glucagon in blood glucose homeostasis?

Correct AnswerverifiedShow Answer

Which of the following is NOT one of the three functional categories of corticosteroids?

Correct AnswerverifiedShow Answer

Oxytocin synthesis occurs in the neurohypophysis.

Correct AnswerverifiedShow Answer

Where is oxytocin produced?

Correct AnswerverifiedShow Answer

Activated calmodulin will,in turn,activate protein kinases.

Correct AnswerverifiedShow Answer

A deficiency of dopamine would allow the production of prolactin.

Correct AnswerverifiedShow Answer

Cycles of physiological activity that follow a 24-hour pattern are called

Correct AnswerverifiedShow Answer

Which of the following is NOT true about a chemical functioning in physiological regulation

Correct AnswerverifiedShow Answer

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