Question 1

Which of the following illustrates acute hormone secretion most accurately?

Accepted Answer

A)   Blood levels of hormone A are maintained constantly but increase regularly around meal times.
B)   Blood levels of hormone B are maintained at constant levels at all times with very small deviations throughout a 24-hour period.
C)   Blood levels of hormone C are relatively constant but will increase dramatically under some stressful situations but not as much under other stressful situations.D) A) and B)
E) A) and C)

Question 2

In general, lipid-soluble hormones exhibit which type(s)  of hormone secretion pattern(s) ?

Accepted Answer

A)   Chronic hormone secretion
B)   Chronic and acute hormone secretion
C)   Acute and episodic hormone secretion
D)   Episodic hormone secretion
E)   Chronic and episodic hormone secretionF) B) and C)
G) C) and D) E

Question 3

Thyroid hormones (TH)  normally travel in the blood both free and bound to TH-binding proteins. What would you expect to see in the blood work of a patient who had a deficiency of TH-binding protein?

Accepted Answer

A)   Normal free TH levels and low bound TH levels
B)   Low free TH levels and low bound TH levels
C)   Low free TH levels and normal bound TH levels
D)   Normal free TH levels and normal bound TH levelsE) B) and C)
F) None of the above

Question 4

Match the chemical signal with the appropriate description.
-Neurotransmitter
A)Chemicals produced by neurons that function as hormones
B)Chemicals that act locally on nearby cells
C)Chemical secreted by presynaptic terminal
D)Influences same cell type from which it is secreted
E)Chemical secreted into blood by specialized cells; travels some distance to target tissues

Accepted Answer

The answer of Match the chemical signal with the appropriate...

Question 5

Which of the following statements regarding hormone transport and distribution is FALSE?

Accepted Answer

A)   Only free hormones can diffuse through capillary walls and bind to target tissues.
B)   Hormones can be transported free in the plasma or bound to plasma proteins.
C)   Plasma protein concentration has no influence on free hormone concentration.
D)   Hormones bind only to certain types of plasma proteins.
E)   All of the statements are true.F) B) and C)
G) A) and B)

Question 6

All of the following chemical messengers may be listed in multiple functional classes except ________.

Accepted Answer

A)   eicosanoids
B)   epinephrine
C)   prostaglandins
D)   acetylcholineE) A) and D)
F) C) and D)

Question 7

All of the following are water-soluble hormones except ________.

Accepted Answer

A)   growth hormone
B)   insulin
C)   thyrotropin-releasing hormone
D)   thyroid-stimulating hormone
E)   thyroid hormoneF) C) and E)
G) A) and E)

Question 8

Which pattern of hormone secretion, often observed in steroid reproductive hormones, will fluctuate over a monthly cycle?

Accepted Answer

A)   Acute hormone secretion
B)   Episodic hormone secretion
C)   Long-term hormone secretion
D)   Chronic hormone secretionE) A) and D)
F) All of the above

Question 9

A chemical produced in a cell that activates specific processes in response to a hormone interaction with a membrane-bound receptor is referred to as a/an ________.

Accepted Answer

A)   hormone response element
B)   transcription factor
C)   messenger RNA
D)   intracellular mediatorE) All of the above
F) A) and D)

Question 10

Match the description with the type of receptor model.
-Cyclic AMP or cyclic GMP involved

Accepted Answer

A)  Nuclear receptor model
B)  Membrane-bound receptor modelC) A) and B)
D) undefined

Question 11

Match the description with the type of receptor model.
-Used by most lipid-soluble hormones
A)Nuclear receptor model
B)Membrane-bound receptor model

Accepted Answer

The answer of Match the description with the type of...

Question 12

Which type of chemical messenger will act locally on nearby cells?

Accepted Answer

A)   Paracrine
B)   Neurotransmitter
C)   Autocrine
D)   EndocrineE) B) and C)
F) A) and B) A

Question 13

When a hormone binds to a membrane-bound receptor,

Accepted Answer

A)   membrane channels are destroyed.
B)   cyclic GMP might be produced to act as an intracellular mediator.
C)   the nucleus is phosphorylated to prevent G-protein activation.
D)   messenger RNA is formed.
E)   cellular DNA is altered.F) A) and D)
G) All of the above

Question 14

All of the following are characteristics of hormones except

Accepted Answer

A)   hormones alter activity in target cells.
B)   hormones interact specifically with receptors.
C)   hormones are stable in blood until arrival at target cells.
D)   hormones interact with any cells in contact with bloodstream.E) A) and B)
F) A) and C) D

Question 15

Match the description with the type of receptor model.
-Generally observe a latent period

Accepted Answer

A)  Nuclear receptor model
B)  Membrane-bound receptor modelC) A) and B)
D) undefined

Question 16

When a few intracellular mediator molecules activate several enzymes, and each of these activated enzymes activate still other enzymes, the hormone has initiated ________.

Accepted Answer

A)   a cascade effect
B)   a double loop effect
C)   a protein kinase effect
D)   a cyclic effect
E)   a negative feedback cycleF) B) and C)
G) None of the above

Question 17

Match the chemical signal with the appropriate description.
-Neuropeptide

Accepted Answer

A)  Chemicals produced by neurons that function as hormones
B)  Chemicals that act locally on nearby cells
C)  Chemical secreted by presynaptic terminal
D)  Influences same cell type from which it is secreted
E)  Chemical secreted into blood by specialized cells; travels some distance to target tissuesF) A) and B)
G) B) and C)

Question 18

Emily is in labor with her first child. The amplitude-modulated system would show her oxytocin levels ________.

Accepted Answer

A)   to have a weak signal
B)   to have a moderate signal
C)   to have a strong signal
D)   too weak to measureE) A) and B)
F) None of the above

Question 19

How do most water-soluble hormones travel in the bloodstream?

Accepted Answer

A)   Attached to proteins
B)   Attached to carbohydrates
C)   Attached to amino acids
D)   As free hormonesE) A) and B)
F) A) and C)

Question 20

Secretion of the hormones ________ and ________ exemplify the pattern of chronic hormone secretion.

Accepted Answer

A)   epinephrine; norepinephrine
B)   insulin; glucagon
C)   calcitonin; PTH
D)   estrogen; progesterone
E)   thyrotropin; thyroxineF) All of the above
G) C) and D)

Exam 17: Functional Organization of the Endocrine System

Which of the following illustrates acute hormone secretion most accurately?

Correct Answer
verified

In general, lipid-soluble hormones exhibit which type(s) of hormone secretion pattern(s) ?

Correct Answer
verified
E

Thyroid hormones (TH) normally travel in the blood both free and bound to TH-binding proteins. What would you expect to see in the blood work of a patient who had a deficiency of TH-binding protein?

Correct Answer
verified

Correct Answer
verified

Which of the following statements regarding hormone transport and distribution is FALSE?

Correct Answer
verified

All of the following chemical messengers may be listed in multiple functional classes except ________.

Correct Answer
verified

All of the following are water-soluble hormones except ________.

Correct Answer
verified

Which pattern of hormone secretion, often observed in steroid reproductive hormones, will fluctuate over a monthly cycle?

Correct Answer
verified

A chemical produced in a cell that activates specific processes in response to a hormone interaction with a membrane-bound receptor is referred to as a/an ________.

Correct Answer
verified

Match the description with the type of receptor model. -Cyclic AMP or cyclic GMP involved

Correct Answer
verified

Match the description with the type of receptor model. -Used by most lipid-soluble hormones A)Nuclear receptor model B)Membrane-bound receptor model

Correct Answer
verified

Which type of chemical messenger will act locally on nearby cells?

Correct Answer
verified
A

When a hormone binds to a membrane-bound receptor,

Correct Answer
verified

All of the following are characteristics of hormones except

Correct Answer
verified
D

Match the description with the type of receptor model. -Generally observe a latent period

Correct Answer
verified

When a few intracellular mediator molecules activate several enzymes, and each of these activated enzymes activate still other enzymes, the hormone has initiated ________.

Correct Answer
verified

Match the chemical signal with the appropriate description. -Neuropeptide

Correct Answer
verified

Emily is in labor with her first child. The amplitude-modulated system would show her oxytocin levels ________.

Correct Answer
verified

How do most water-soluble hormones travel in the bloodstream?

Correct Answer
verified

Secretion of the hormones and exemplify the pattern of chronic hormone secretion.

Correct Answer
verified

Exam 17: Functional Organization of the Endocrine System

Which of the following illustrates acute hormone secretion most accurately?

Correct AnswerverifiedShow Answer

In general, lipid-soluble hormones exhibit which type(s) of hormone secretion pattern(s) ?

Correct AnswerverifiedE

Thyroid hormones (TH) normally travel in the blood both free and bound to TH-binding proteins. What would you expect to see in the blood work of a patient who had a deficiency of TH-binding protein?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Which of the following statements regarding hormone transport and distribution is FALSE?

Correct AnswerverifiedShow Answer

All of the following chemical messengers may be listed in multiple functional classes except ________.

Correct AnswerverifiedShow Answer

All of the following are water-soluble hormones except ________.

Correct AnswerverifiedShow Answer

Which pattern of hormone secretion, often observed in steroid reproductive hormones, will fluctuate over a monthly cycle?

Correct AnswerverifiedShow Answer

A chemical produced in a cell that activates specific processes in response to a hormone interaction with a membrane-bound receptor is referred to as a/an ________.

Correct AnswerverifiedShow Answer

Match the description with the type of receptor model. -Cyclic AMP or cyclic GMP involved

Correct AnswerverifiedShow Answer

Match the description with the type of receptor model. -Used by most lipid-soluble hormones A)Nuclear receptor model B)Membrane-bound receptor model

Correct AnswerverifiedShow Answer

Which type of chemical messenger will act locally on nearby cells?

Correct AnswerverifiedA

When a hormone binds to a membrane-bound receptor,

Correct AnswerverifiedShow Answer

All of the following are characteristics of hormones except

Correct AnswerverifiedD

Match the description with the type of receptor model. -Generally observe a latent period

Correct AnswerverifiedShow Answer

When a few intracellular mediator molecules activate several enzymes, and each of these activated enzymes activate still other enzymes, the hormone has initiated ________.

Correct AnswerverifiedShow Answer

Match the chemical signal with the appropriate description. -Neuropeptide

Correct AnswerverifiedShow Answer

Emily is in labor with her first child. The amplitude-modulated system would show her oxytocin levels ________.

Correct AnswerverifiedShow Answer

How do most water-soluble hormones travel in the bloodstream?

Correct AnswerverifiedShow Answer

Secretion of the hormones ________ and ________ exemplify the pattern of chronic hormone secretion.

Correct AnswerverifiedShow Answer

Correct Answer
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E

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A

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D

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Secretion of the hormones and exemplify the pattern of chronic hormone secretion.

Correct Answer
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