Question 1

Protein hormones bind to receptors located within the plasma membrane.

Accepted Answer

A) True 
 B)False

Question 2

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) A) and B)
F) A) and C)

Question 3

Carrier proteins would be required by

Accepted Answer

A)  aldosterone.
B)  cholecystokinin.
C)  follicle stimulating hormone.
D)  prolactin.E) All of the above
F) A) and B)

Question 4

Many polypeptide and glycoprotein hormones are secreted in discrete bursts called pulsatile secretions.

Accepted Answer

A) True 
 B)False

Question 5

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

Accepted Answer

A) True 
 B)False

Question 6

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) None of the above
F) B) and C)

Question 7

Higher brain centers can influence pituitary secretions and therefore the target organ through the pituitary-target organ axis.

Accepted Answer

A) True 
 B)False

Question 8

Calcitonin and PTH are antagonistic hormones.

Accepted Answer

A) True 
 B)False

Question 9

Which of the following is NOT a polypeptide or glycoprotein hormone?

Accepted Answer

A)  cortisol
B)  glucagon
C)  antidiuretic hormone
D)  parathyroid hormoneE) A) and B)
F) A) and C)

Question 10

Wound healing would be slowed due to a lack of ____________ growth factors.

Accepted Answer

A)  nerve
B)  endothelin
C)  epidermal
D)  plateletE) B) and C)
F) A) and D)

Question 11

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) A) and C)
F) B) and D)

Question 12

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 13

Pituitary dwarfism is caused by adult hyposecretion of growth hormone.

Accepted Answer

A) True 
 B)False

Question 14

The same prostaglandin may produce different effects in different tissues.

Accepted Answer

A) True 
 B)False

Question 15

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) All of the above
F) C) and D)

Question 16

A tumor stimulating oversecretion of hormones by the thyroid gland would cause plasma Ca2+ to increase.

Accepted Answer

A) True 
 B)False

Question 17

Hormones which enhance the responsiveness of a target organ to a second hormone have

Accepted Answer

A)  complementary effects.
B)  synergistic effects.
C)  antagonistic effects.
D)  permissive effects.E) A) and B)
F) B) and D)

Question 18

Testosterone receptors would be ____________ in response to anabolic steroid abuse.

Accepted Answer

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

Question 19

The ____________ has a cortex medulla derived from ectoderm and a cortex derived from mesoderm.

Accepted Answer

A)  adrenal gland
B)  pancreas
C)  thyroid gland
D)  pituitary glandE) A) and D)
F) All of the above

Question 20

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

Accepted Answer

A) True 
 B)False

Exam 11: Endocrine Glands

Wound healing would be slowed due to a lack of ____________ growth factors.

Correct AnswerverifiedShow Answer

Testosterone receptors would be ____________ in response to anabolic steroid abuse.

Correct AnswerverifiedShow Answer

Hormones which enhance the responsiveness of a target organ to a second hormone have

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The same prostaglandin may produce different effects in different tissues.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Calcitonin and PTH are antagonistic hormones.

Correct AnswerverifiedShow Answer

Higher brain centers can influence pituitary secretions and therefore the target organ through the pituitary-target organ axis.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The ____________ has a cortex medulla derived from ectoderm and a cortex derived from mesoderm.

Correct AnswerverifiedShow Answer

Many growth factors use

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

Protein hormones bind to receptors located within the plasma membrane.

Correct AnswerverifiedShow Answer

Pituitary dwarfism is caused by adult hyposecretion of growth hormone.

Correct AnswerverifiedShow Answer

A tumor stimulating oversecretion of hormones by the thyroid gland would cause plasma Ca2+ to increase.

Correct AnswerverifiedShow Answer

Many polypeptide and glycoprotein hormones are secreted in discrete bursts called pulsatile secretions.

Correct AnswerverifiedShow Answer

Which of the following is NOT a polypeptide or glycoprotein hormone?

Correct AnswerverifiedShow Answer

Carrier proteins would be required by

Correct AnswerverifiedShow Answer

The hyposecretion of glucocorticoids and mineralocorticoids results in

Correct AnswerverifiedShow Answer

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A tumor stimulating oversecretion of hormones by the thyroid gland would cause plasma Ca²⁺ to increase.

Correct Answer
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