Question 1

Adenylate cyclase causes ATP molecules to become ______ _______ molecules.

Accepted Answer

The answer of Adenylate cyclase causes ATP molecules to become...

Question 2

Parathyroid hormone stimulates the activity of bone-resorbing osteoblasts.

Accepted Answer

A) True 
 B)False

Question 3

Athletes abuse erythropoietin (EPO) because this hormone

Accepted Answer

A)  decreases the number of red blood cells.
B)  increases the number of white blood cells.
C)  increases the number of red blood cells.
D)  adds protein to plasma.E) B) and C)
F) All of the above

Question 4

With age,

Accepted Answer

A)  levels of GH increase but of ADH decrease.
B)  levels of GH decrease but of ADH increase.
C)  levels of GH and ADH both decrease.
D)  levels of GH and ADH both increase.E) A) and C)
F) B) and C)

Question 5

The thymus gland secretes hormones called _____ that _______.

Accepted Answer

A)  thyroxines;control metabolism
B)  melatonins;control circadian rhythms
C)  prostaglandins;control strength
D)  thymosins;control production and differentiation of white blood cellsE) A) and D)
F) All of the above

Question 6

The hormone that the pineal gland secretes is

Accepted Answer

A)  melanomA.
B)  melatonin.
C)  myostatin.
D)  beta endorphin.E) None of the above
F) A) and C)

Question 7

Another name for antidiuretic hormone is

Accepted Answer

A)  intermedin.
B)  oxytocin.
C)  vasopressin.
D)  aldosterone.E) A) and B)
F) A) and C)

Question 8

A person under stress may have a lowered resistance to infection.

Accepted Answer

A) True 
 B)False

Question 9

A hormone is a secreted molecule that is carried in the bloodstream to where it acts on target cells that bear specific receptors for that hormone.

Accepted Answer

A) True 
 B)False

Question 10

A nonsteroid hormone acts on a target cell by

Accepted Answer

A)  causing synthesis of a second messenger.
B)  stimulating cell division.
C)  promoting phagocytosis.
D)  directly causing protein synthesis.E) B) and C)
F) All of the above

Question 11

Which of the following statements is correct with respect to T3 and T4?

Accepted Answer

A)  T4 has a higher free concentration in the plasmA.
B)  T4 is more important physiologically.
C)  About one third of T4 is converted to T3 in peripheral tissues.
D)  T4 is more potent.E) B) and C)
F) A) and D)

Question 12

Nonsteroid hormones include peptides,proteins,glycoproteins,and amines.

Accepted Answer

A) True 
 B)False

Question 13

A hormone that the adrenal medulla secretes is

Accepted Answer

A)  mineralocorticoid.
B)  glucocorticoid.
C)  aldosterone.
D)  none of the above.E) A) and D)
F) B) and D)

Question 14

"Endocrine" means

Accepted Answer

A)  hormone synthesis.
B)  internal secretion.
C)  acts upon target cells.
D)  fast-acting compounD.E) B) and D)
F) All of the above

Question 15

Maxwell has a very high metabolic rate,is skinny,and has protruding eyes.These are symptoms of

Accepted Answer

A)  hypothyroidism.
B)  hyperthyroidism.
C)  hypoparathyroidism.
D)  hyperparathyroidism.E) A) and D)
F) B) and C)

Question 16

Hormones that the posterior pituitary secretes are synthesized in the

Accepted Answer

A)  posterior pituitary.
B)  hypothalamus.
C)  thalamus.
D)  anterior pituitary.E) B) and C)
F) A) and D)

Question 17

The nervous system releases neurotransmitters into synapses.In contrast,the endocrine system releases _______ into the bloodstream.

Accepted Answer

The answer of The nervous system releases neurotransmitters into synapses.In...

Question 18

One of the hallmarks of Graves disease is

Accepted Answer

A)  weight gain.
B)  increased thirst.
C)  decreased appetite.
D)  goiter.E) B) and C)
F) A) and C)

Question 19

Paracrine substances called ______ have powerful,regulating effects on cellular responses to hormones.

Accepted Answer

The answer of Paracrine substances called ______ have powerful,regulating effects...

Question 20

Type 1 diabetes mellitus is caused by

Accepted Answer

A)  excess sugar in the diet.
B)  obesity.
C)  a disorder of the immune system.
D)  an effect of aging.E) All of the above
F) B) and D)

Exam 13: Endocrine System

The nervous system releases neurotransmitters into synapses.In contrast,the endocrine system releases _______ into the bloodstream.

Correct AnswerverifiedShow Answer

A person under stress may have a lowered resistance to infection.

Correct AnswerverifiedShow Answer

Adenylate cyclase causes ATP molecules to become ______ _______ molecules.

Correct AnswerverifiedShow Answer

A hormone is a secreted molecule that is carried in the bloodstream to where it acts on target cells that bear specific receptors for that hormone.

Correct AnswerverifiedShow Answer

One of the hallmarks of Graves disease is

Correct AnswerverifiedShow Answer

Which of the following statements is correct with respect to T3 and T4?

Correct AnswerverifiedShow Answer

Type 1 diabetes mellitus is caused by

Correct AnswerverifiedShow Answer

Hormones that the posterior pituitary secretes are synthesized in the

Correct AnswerverifiedShow Answer

The hormone that the pineal gland secretes is

Correct AnswerverifiedShow Answer

A nonsteroid hormone acts on a target cell by

Correct AnswerverifiedShow Answer

Athletes abuse erythropoietin (EPO) because this hormone

Correct AnswerverifiedShow Answer

Nonsteroid hormones include peptides,proteins,glycoproteins,and amines.

Correct AnswerverifiedShow Answer

Paracrine substances called ______ have powerful,regulating effects on cellular responses to hormones.

Correct AnswerverifiedShow Answer

The thymus gland secretes hormones called _____ that _______.

Correct AnswerverifiedShow Answer

Maxwell has a very high metabolic rate,is skinny,and has protruding eyes.These are symptoms of

Correct AnswerverifiedShow Answer

With age,

Correct AnswerverifiedShow Answer

A hormone that the adrenal medulla secretes is

Correct AnswerverifiedShow Answer

Parathyroid hormone stimulates the activity of bone-resorbing osteoblasts.

Correct AnswerverifiedShow Answer

"Endocrine" means

Correct AnswerverifiedShow Answer

Another name for antidiuretic hormone is

Correct AnswerverifiedShow Answer

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Adenylate cyclase causes ATP molecules to become _ molecules.

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Which of the following statements is correct with respect to T₃ and T₄?

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The thymus gland secretes hormones called _ that ___.

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