Question 1

Which of the following is NOT a response of the body to stress?

Accepted Answer

A)  increased secretion of ACTH
B)  increased secretion of glucocorticoids
C)  increased immune response
D)  increased secretion of epinephrine and norepinephrineE) All of the above
F) A) and C)

Question 2

The hypothalamus,anterior pituitary gland,and the various target glands control the functions of each other,so there is no "master gland."

Accepted Answer

A) True 
 B)False

Question 3

Activated calmodulin will,in turn,activate protein kinases.

Accepted Answer

A) True 
 B)False

Question 4

Which of the following is NOT an action of aldosterone secretion?

Accepted Answer

A)  raises blood glucose levels
B)  stimulates kidneys to retain Na+
C)  causes loss of K+ in urine
D)  an increase in blood volume and pressureE) A) and B)
F) C) and D)

Question 5

Mutation of the calmodulin gene would alter the ability of ____________ to act as a second messenger.

Accepted Answer

A)  calcium
B)  sodium
C)  potassium
D)  cAMPE) All of the above
F) C) and D)

Question 6

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) B) and C)

Question 7

Many growth factors use

Accepted Answer

A)  cyclic AMP as a second messenger.
B)  tyrosine kinase as a second messenger.
C)  calmodulin as a second messenger.
D)  cyclic GMP as a second messenger.E) None of the above
F) B) and C)

Question 8

Which of the following statements about prostaglandins is true?

Accepted Answer

A)  Prostaglandin synthesis is blocked by the actions of caffeine.
B)  Prostaglandins inhibit inflammation.
C)  Prostaglandins may contribute to asthma.
D)  Thromboxane A2 induces vasodilation.E) C) and D)
F) B) and D)

Question 9

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

Accepted Answer

A) True 
 B)False

Question 10

Increased circulating concentrations of testosterone would stimulate

Accepted Answer

A)  decreased secretion of growth hormone.
B)  decreased secretion of adrenocorticotropin.
C)  decreased secretion of luteinizing hormone.
D)  decreased secretion of thyroid stimulating hormone.E) None of the above
F) C) and D)

Question 11

Adenohypophyseal function is regulated by the hypothalamus.

Accepted Answer

A) True 
 B)False

Question 12

Pharmacological concentrations of hormones causes normal tissue responses.

Accepted Answer

A) True 
 B)False

Question 13

Thyroid hormone receptors form a ___ on their DNA half-sites.

Accepted Answer

A)  homodimer
B)  autodimer
C)  pseudodimer
D)  heterodimerE) A) and D)
F) A) and C)

Question 14

What controls release of corticoids from the adrenal cortex?

Accepted Answer

A)  higher brain centers
B)  CRH from the hypothalamus
C)  ACTH from the anterior pituitary
D)  All apply.E) None of the above
F) B) and C)

Question 15

Proteins that must bind to a nuclear receptor protein that aids in its activation are called

Accepted Answer

A)  homodimers.
B)  corepressors.
C)  orphan receptors.
D)  coactivators.E) All of the above
F) None of the above

Question 16

The hyposecretion of glucocorticoids and mineralocorticoids results in

Accepted Answer

A)  Addison's disease.
B)  diabetes insipidus.
C)  Grave's disease.
D)  Cushing's disease.E) C) and D)
F) B) and D)

Question 17

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

Accepted Answer

A) True 
 B)False

Question 18

Male secondary sex characteristics would not develop in boys in which the ____________ cells did not secrete testosterone.

Accepted Answer

A)  seminiferous tubule
B)  interstitial
C)  Leydig
D)  Both interstitial and Leydig are correctE) B) and C)
F) A) and B)

Question 19

Drugs that are useful for treating asthma are

Accepted Answer

A)  COX-2 inhibitors.
B)  anti-leukotrienes.
C)  COX-3 inhibitors.
D)  COX-1 inhibitors.E) All of the above
F) B) and D)

Question 20

Responsiveness of cells to hormones is determined by the presence or absence of specific hormone receptor proteins.

Accepted Answer

A) True 
 B)False

Exam 11: Endocrine Glands: Secretion and Action of Hormones

Mutation of the calmodulin gene would alter the ability of ____________ to act as a second messenger.

Correct AnswerverifiedShow Answer

Activated calmodulin will,in turn,activate protein kinases.

Correct AnswerverifiedShow Answer

Adenohypophyseal function is regulated by the hypothalamus.

Correct AnswerverifiedShow Answer

Steroid hormone receptors may be found

Correct AnswerverifiedShow Answer

Drugs that are useful for treating asthma are

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Proteins that must bind to a nuclear receptor protein that aids in its activation are called

Correct AnswerverifiedShow Answer

The hyposecretion of glucocorticoids and mineralocorticoids results in

Correct AnswerverifiedShow Answer

Many growth factors use

Correct AnswerverifiedShow Answer

Which of the following statements about prostaglandins is true?

Correct AnswerverifiedShow Answer

Which of the following is NOT an action of aldosterone secretion?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

What controls release of corticoids from the adrenal cortex?

Correct AnswerverifiedShow Answer

Which of the following is NOT a response of the body to stress?

Correct AnswerverifiedShow Answer

Male secondary sex characteristics would not develop in boys in which the ____________ cells did not secrete testosterone.

Correct AnswerverifiedShow Answer

Increased circulating concentrations of testosterone would stimulate

Correct AnswerverifiedShow Answer

Responsiveness of cells to hormones is determined by the presence or absence of specific hormone receptor proteins.

Correct AnswerverifiedShow Answer

Thyroid hormone receptors form a ___ on their DNA half-sites.

Correct AnswerverifiedShow Answer

The hypothalamus,anterior pituitary gland,and the various target glands control the functions of each other,so there is no "master gland."

Correct AnswerverifiedShow Answer

Pharmacological concentrations of hormones causes normal tissue responses.

Correct AnswerverifiedShow Answer

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