Question 1

In some forms of diabetes,an insensitivity to insulin seems to be present.This insensitivity could be the result of

Accepted Answer

A)  up-regulation.
B)  over-regulation.
C)  down-regulation.
D)  a lack of regulation.
E)  modulation.F) B) and E)
G) A) and C)

Question 2

What type of chemical messenger stimulates the cell that originally secreted it?

Accepted Answer

A)  paracrine
B)  neurotransmitter
C)  autocrine
D)  endocrineE) A) and B)
F) A) and C)

Question 3

Hormones act on specific tissues called _______ tissues.

Accepted Answer

The answer of Hormones act on specific tissues called _______...

Question 4

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 5

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 C)
G) B) and C)

Question 6

The length of time needed to eliminate half of a dose of a hormone is called its _______ ________.

Accepted Answer

The answer of The length of time needed to eliminate...

Question 7

Which chemical class of hormone is more likely to need a binding protein for transport in the blood?

Accepted Answer

A)  water-soluble
B)  amino acid derivative
C)  protein
D)  lipid-solubleE) C) and D)
F) B) and C)

Question 8

Cortisol,a lipid-soluble hormone is released into the blood.Predict what cortisol might do.

Accepted Answer

A)   can dissolve in the blood as free hormone
B)   needs fenestrated capillaries to move out of the blood stream
C)   readily diffuses through capillary wall
D)  rapidly degraded by proteases in the bloodstream
E)   may have carbohydrates attached to give a longer half-lifeF) C) and D)
G) A) and B)

Question 9

Match the description with the type of receptor model.
-used by most lipid-soluble hormones

Accepted Answer

A)  nuclear receptor model
B)  membrane-bound receptor modelC) A) and B)
D) undefined

Question 10

Lipid-soluble hormones can be more easily excreted once they have water-soluble molecules added to their structure in a process called

Accepted Answer

A)  saponification.
B)  amplitude-modulation.
C)  conjugation.
D)  protein-binding.E) A) and C)
F) A) and D)

Question 11

_______ chemical signals are released by cells and affect other cell types locally without being transported in blood.

Accepted Answer

The answer of _______ chemical signals are released by cells...

Question 12

When a hormone binds to a membrane-bound receptor and activates G proteins,

Accepted Answer

A)  ion channels could be opened.
B)  IP3 may be activated.
C)  cyclic AMP production may be increased.
D)  DAG may be activated.
E)  All of the choices may occur from activated G proteins.F) A) and D)
G) A) and C)

Question 13

Up-regulation

Accepted Answer

A)  results in a decrease in the number of receptor sites in the target cell.
B)  produces an increase in the sensitivity of the target cell to the hormone.
C)  is found in target cells that maintain a constant level of receptors.
D)  produces insensitivity to the hormone in the target tissue.
E)  moves the receptors up on the membrane.F) None of the above
G) C) and D)

Question 14

Match the chemical signal with the appropriate description.
-autocrine

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) All of the above
G) B) and D)

Question 15

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 16

Match the description with the type of receptor model.
-intracellular mediator

Accepted Answer

A)  nuclear receptor model
B)  membrane-bound receptor modelC) A) and B)
D) undefined

Question 17

In general,the response of target cells to endocrine stimulation is _______ than their response to nervous stimulation.

Accepted Answer

A)  faster and briefer
B)  slower and more prolonged
C)  more accurate
D)  more restricted to a small area of the body
E)  more intenseF) B) and C)
G) B) and E)

Question 18

Arrange the following events in proper sequence: (1) The activating hormone interacts with a membrane-bound receptor.
(2) Cyclic AMP causes the cell to carry out a function characteristic for that specific hormone.
(3) Adenylyl cyclase catalyzes the transformation of ATP to cyclic AMP.
(4) Adenylyl cyclase is activated.

Accepted Answer

A)  1,2,3,4
B)  1,4,3,2
C)  3,4,2,1
D)  1,3,2,4
E)  1,3,4,2F) A) and B)
G) B) and E)

Question 19

Which pattern of hormone secretion,exemplified by thyroid hormones,remains relatively constant over long periods of time?

Accepted Answer

A)  acute hormone secretion
B)  episodic hormone secretion
C)  chronic hormone secretion
D)  long-term hormone secretionE) A) and D)
F) A) and C)

Question 20

The half-life of a hormone allows one to determine

Accepted Answer

A)  the rate of hormone secretion.
B)  the identity of a hormone.
C)  the rate at which hormones are eliminated from the body.
D)  the rate of action of a hormone.
E)  the rate of travel through the blood to a target.F) A) and E)
G) B) and C)

Exam 17: Functional Organization of the Endocrine System

Match the description with the type of receptor model. -intracellular mediator

Correct Answer
verified

The length of time needed to eliminate half of a dose of a hormone is called its _ __.

Correct Answer
verified

Which chemical class of hormone is more likely to need a binding protein for transport in the blood?

Correct Answer
verified

Lipid-soluble hormones can be more easily excreted once they have water-soluble molecules added to their structure in a process called

Correct Answer
verified

In general,the response of target cells to endocrine stimulation is _______ than their response to nervous stimulation.

Correct Answer
verified

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

Correct Answer
verified

Correct Answer
verified

The half-life of a hormone allows one to determine

Correct Answer
verified

Cortisol,a lipid-soluble hormone is released into the blood.Predict what cortisol might do.

Correct Answer
verified

Up-regulation

Correct Answer
verified

Hormones act on specific tissues called _______ tissues.

Correct Answer
verified

When a hormone binds to a membrane-bound receptor and activates G proteins,

Correct Answer
verified

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

Correct Answer
verified

Which pattern of hormone secretion,exemplified by thyroid hormones,remains relatively constant over long periods of time?

Correct Answer
verified

What type of chemical messenger stimulates the cell that originally secreted it?

Correct Answer
verified

Match the description with the type of receptor model. -used by most lipid-soluble hormones

Correct Answer
verified

Match the chemical signal with the appropriate description. -autocrine

Correct Answer
verified

_______ chemical signals are released by cells and affect other cell types locally without being transported in blood.

Correct Answer
verified

Match the chemical signal with the appropriate description. -neuropeptide

Correct Answer
verified

In some forms of diabetes,an insensitivity to insulin seems to be present.This insensitivity could be the result of

Correct Answer
verified

Exam 17: Functional Organization of the Endocrine System

Match the description with the type of receptor model. -intracellular mediator

Correct AnswerverifiedShow Answer

The length of time needed to eliminate half of a dose of a hormone is called its _______ ________.

Correct AnswerverifiedShow Answer

Which chemical class of hormone is more likely to need a binding protein for transport in the blood?

Correct AnswerverifiedShow Answer

Lipid-soluble hormones can be more easily excreted once they have water-soluble molecules added to their structure in a process called

Correct AnswerverifiedShow Answer

In general,the response of target cells to endocrine stimulation is _______ than their response to nervous stimulation.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

The half-life of a hormone allows one to determine

Correct AnswerverifiedShow Answer

Cortisol,a lipid-soluble hormone is released into the blood.Predict what cortisol might do.

Correct AnswerverifiedShow Answer

Up-regulation

Correct AnswerverifiedShow Answer

Hormones act on specific tissues called _______ tissues.

Correct AnswerverifiedShow Answer

When a hormone binds to a membrane-bound receptor and activates G proteins,

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which pattern of hormone secretion,exemplified by thyroid hormones,remains relatively constant over long periods of time?

Correct AnswerverifiedShow Answer

What type of chemical messenger stimulates the cell that originally secreted it?

Correct AnswerverifiedShow Answer

Match the description with the type of receptor model. -used by most lipid-soluble hormones

Correct AnswerverifiedShow Answer

Match the chemical signal with the appropriate description. -autocrine

Correct AnswerverifiedShow Answer

_______ chemical signals are released by cells and affect other cell types locally without being transported in blood.

Correct AnswerverifiedShow Answer

Match the chemical signal with the appropriate description. -neuropeptide

Correct AnswerverifiedShow Answer

In some forms of diabetes,an insensitivity to insulin seems to be present.This insensitivity could be the result of

Correct AnswerverifiedShow Answer

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verified

The length of time needed to eliminate half of a dose of a hormone is called its _ __.

Correct Answer
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