Question 1

The common molecule from which all steroid hormones are derived is:

Accepted Answer

A)   phospholipids.
B)   cholesterol.
C)   lecithin.
D)   triglycerols.E) A) and B)
F) B) and C)

Question 2

Explain the mechanism of steroid hormone action.What is the end product of a steroid hormone?

Accepted Answer

Steroid hormones exert their effects by ...

Question 3

The term down-regulation refers to the:

Accepted Answer

A)   decrease in hormone production as we age.
B)   negative-feedback system or hormone regulation.
C)   reduction of the number of hormone receptors in a cell.
D)   movement of regulating hormones from the hypothalamus down to the pituitary gland.E) None of the above
F) B) and C)

Question 4

Match each chemical classification with a corresponding hormone.
-cortisol

Accepted Answer

A)  Steroid
B)  Protein
C)  Glycoprotein
D)  Peptide
E)  AmineF) A) and D)
G) A) and E)

Question 5

Match each term with its explanation or definition.
-the combination of hormones have a greater effect than the sum of the effects of the two hormones separately

Accepted Answer

A)  Synergism
B)  Steroid hormone
C)  Second messenger
D)  Target cell
E)  Up-regulationF) AntagonismG) ProstaglandinH) Tropic hormoneI) Nonsteroid hormoneJ) PermissivenessK) A) and E)
L) D) and E)

Question 6

Responses that result from endocrine feedback loops are called endocrine reflexes.

Accepted Answer

A) True 
 B)False

Question 7

If a small amount of hormone produced a disproportionately great response in a cell,the hormone was most likely a nonsteroid hormone.

Accepted Answer

A) True 
 B)False

Question 8

The general effect of hormones is to produce regulatory changes within the target cell.

Accepted Answer

A) True 
 B)False

Question 9

The specific role of cAMP is to activate kinases.

Accepted Answer

A) True 
 B)False

Question 10

The target organs for tropic hormones are usually other endocrine glands.

Accepted Answer

A) True 
 B)False

Question 11

Match each term with its explanation or definition.
-increasing the number of receptors on a target cell

Accepted Answer

A)  Synergism
B)  Steroid hormone
C)  Second messenger
D)  Target cell
E)  Up-regulationF) AntagonismG) ProstaglandinH) Tropic hormoneI) Nonsteroid hormoneJ) PermissivenessK) A) and C)
L) B) and D)

Question 12

The last step in the nonsteroid hormone mechanism of action is:

Accepted Answer

A)   joining with the G protein on the cell membrane.
B)   protein kinases activate other enzymes.
C)   adenyl cyclase is activated.
D)   cAMP is formed.E) B) and C)
F) None of the above

Question 13

The many hormones secreted by endocrine tissues can be classified simply as _____ hormones.

Accepted Answer

A)   steroid or nonsteroid
B)   anabolic or catabolic
C)   sex or nonsex
D)   tropic or hypotropicE) None of the above
F) A) and B)

Question 14

Which of the following statements is false?

Accepted Answer

A)   Both the nervous system and endocrine system use chemicals to send messages.
B)   For the nervous and endocrine systems to function, the receiving cells must have the correct type of receptors.
C)   Cells can have receptors for hormones or for neurotransmitters but not for both.
D)   The nervous and endocrine systems can be seen as one system-the neuroendocrine system.E) A) and B)
F) None of the above

Question 15

Steroids are able to pass easily through a target cell's plasma membrane because they are:

Accepted Answer

A)   synthesized from amino acids.
B)   synthesized from carbohydrates.
C)   lipid-soluble.
D)   synthesized from nucleic acids.E) A) and B)
F) A) and C)

Question 16

In areas of the body where circulation is poor,hormones are carried by small ducts called hormone channels.

Accepted Answer

A) True 
 B)False

Question 17

In nonsteroid hormones,the hormone itself is the first messenger.

Accepted Answer

A) True 
 B)False

Question 18

Both synergism and permissiveness can increase the effect of a hormone.

Accepted Answer

A) True 
 B)False

Question 19

Compare and contrast how the endocrine and nervous systems function to maintain homeostasis of the internal environment.

Accepted Answer

The endocrine and nervous systems both p...

Question 20

All of the following are true statements except:

Accepted Answer

A)   there are at least 16 different prostaglandins.
B)   the first prostaglandin was identified in semen.
C)   aspirin produces some of its effects by increasing PGE synthesis.
D)   PGFs have been used to induce labor and accelerate the delivery of a baby.E) None of the above
F) B) and C)

Exam 18: Endocrine System

The general effect of hormones is to produce regulatory changes within the target cell.

Correct AnswerverifiedShow Answer

If a small amount of hormone produced a disproportionately great response in a cell,the hormone was most likely a nonsteroid hormone.

Correct AnswerverifiedShow Answer

All of the following are true statements except:

Correct AnswerverifiedShow Answer

Match each chemical classification with a corresponding hormone. -cortisol

Correct AnswerverifiedShow Answer

Which of the following statements is false?

Correct AnswerverifiedShow Answer

Match each term with its explanation or definition. -the combination of hormones have a greater effect than the sum of the effects of the two hormones separately

Correct AnswerverifiedShow Answer

Compare and contrast how the endocrine and nervous systems function to maintain homeostasis of the internal environment.

Correct AnswerAnswered by ExamLex AIThe endocrine and nervous systems both p...View AnswerShow Answer

In areas of the body where circulation is poor,hormones are carried by small ducts called hormone channels.

Correct AnswerverifiedShow Answer

Both synergism and permissiveness can increase the effect of a hormone.

Correct AnswerverifiedShow Answer

The common molecule from which all steroid hormones are derived is:

Correct AnswerverifiedShow Answer

The many hormones secreted by endocrine tissues can be classified simply as _____ hormones.

Correct AnswerverifiedShow Answer

The target organs for tropic hormones are usually other endocrine glands.

Correct AnswerverifiedShow Answer

Steroids are able to pass easily through a target cell's plasma membrane because they are:

Correct AnswerverifiedShow Answer

Explain the mechanism of steroid hormone action.What is the end product of a steroid hormone?

Correct AnswerAnswered by ExamLex AISteroid hormones exert their effects by ...View AnswerShow Answer

The term down-regulation refers to the:

Correct AnswerverifiedShow Answer

The last step in the nonsteroid hormone mechanism of action is:

Correct AnswerverifiedShow Answer

In nonsteroid hormones,the hormone itself is the first messenger.

Correct AnswerverifiedShow Answer

The specific role of cAMP is to activate kinases.

Correct AnswerverifiedShow Answer

Match each term with its explanation or definition. -increasing the number of receptors on a target cell

Correct AnswerverifiedShow Answer

Responses that result from endocrine feedback loops are called endocrine reflexes.

Correct AnswerverifiedShow Answer

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Answered by ExamLex AI
The endocrine and nervous systems both p...
View Answer

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Correct Answer
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Correct Answer
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Correct Answer
Answered by ExamLex AI
Steroid hormones exert their effects by ...
View Answer

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