Chapter 45 – The Endocrine System
Clarify Question
What is the key concept addressed by the question?
What type of thinking is required?
Gather Content
What do you already know about estrogen and testosterone? What other information is
related to the question?
Choose Answer
Given what you now know, what information is most likely to produce the correct answer?
Reflect on Process
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
Chapter 45 – The Endocrine System
94. Atrial natriuretic hormone (ANH) stimulates the kidneys to excrete salt and water in the
urine. Why does it make sense that the heart is the source of ANH?
Chapter 45 – The Endocrine System
45–75
Clarify Question
What is the key concept addressed by the question?
What type of thinking is required?
Gather Content
What do you already know about atrial natriuretic hormone? What other information is
related to the question?
Choose Answer
Given what you now know, what information is most likely to produce the correct answer?
Reflect on Process
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
Chapter 45 – The Endocrine System
95. What nonendocrine organ produces erythropoietin, which stimulates red blood cell
production in the bone marrow?
96. Your cat has fleas! You look at the ingredients in the flea control ointment, and see that it
contains methoprene, a juvenile hormone analog. What does this accomplish?
Chapter 45 – The Endocrine System
45–77
Clarify Question
What is the key concept addressed by the question?
What type of thinking is required?
Gather Content
What do you already know about juvenile hormone? What other information is related to
the question?
Choose Answer
Given what you now know, what information is most likely to produce the correct answer?
Reflect on Process
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
Chapter 45 – The Endocrine System
97. What is a benefit of targeting hormone signaling rather than a generic cellular
housekeeping process in insects?
Check All That Apply Questions
98. G protein coupled receptors are a large class of receptors that bind hormones as well as
other signaling molecules, neurotransmitters, and even odorants. They are a major target of
pharmaceutical drugs for various disorders. Typically, the drug acts as an antagonist,
blocking the binding site on the GPCR. Why is the receptor a more attractive drug target than
the G protein activated downstream? (Check all that apply.)
Chapter 45 – The Endocrine System
Multiple Choice Questions
99. Beta-blockers are a class of drugs that target beta-adrenergic receptors, blocking the
action of epinephrine and norepinephrine. These drugs are used to treat heart conditions,
hypertension, glaucoma, and migraine headaches and are also used off-label to alleviate stage
fright in performers. Since the beta-adrenergic receptor is a GPCR, what intracellular event is
prevented by the use of a beta-blocker?
Chapter 45 – The Endocrine System
45–80
Clarify Question
What is the key concept addressed by the question?
What type of thinking is required?
Gather Content
What do you already know about G protein-coupled receptors? What other information is
related to the question?
Choose Answer
Given what you now know, what information is most likely to produce the correct answer?
Reflect on Process
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
Chapter 45 – The Endocrine System
45–81
100. Ultimately, the signal from a peptide hormone is typically conveyed to the effectors in
the cell via the transfer of what molecular moiety?
Chapter 45 – The Endocrine System
45–82
Clarify Question
What is the key concept addressed by the question?
What type of thinking is required?
Gather Content
What do you already know about peptide receptors? What other information is related to
the question?
Choose Answer
Given what you now know, what information is most likely to produce the correct answer?
Reflect on Process
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
Chapter 45 – The Endocrine System
45–83
Check All That Apply Questions
101. To exert its effects on gene regulation in a cell, a steroid hormone must interact with a
variety of proteins and cell structures along the way. Check the box for each interaction
partner.
Chapter 45 – The Endocrine System
Clarify Question
What is the key concept addressed by the question?
What type of thinking is required?
Gather Content
What do you already know about steroidhormones? What other information is related to
the question?
Choose Answer
Given what you now know, what information is most likely to produce the correct answer?
Reflect on Process
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?