Seeley's AP 1 Final Exam Study Guide Questions
and Answers| Latest Update
Which of the following is NOT true of water-soluble hormones?
Select one:
a. can dissolve in the blood as free hormones
b. large hormones need fenestrated capillaries to move out of the blood stream
c. most readily diffuse through capillary walls
d. rapidly degraded by proteases in the bloodstream
e. some may have carbohydrates attached to give a longer half-life c. most readily diffuse
through capillary walls
The endocrine system secretes chemicals that reach their targets through the bloodstream.
Once a lipid-soluble hormone is conjugated in the liver it can be more quickly eliminated
from the body.
A water-soluble hormone binds to its receptor on the plasma membrane. Arrange the events that
follow in correct sequence.
(1) alpha subunit-GTP complex alters cell activity
(2) GTP binds to the alpha subunit replacing GDP
(3) G-protein subunits separate from the receptor
(4) alpha subunit separates from other two subunits
,(5) G-protein subunits bind to the receptor 5, 2, 3, 4, 1
Which chemical class of hormone is more likely to need a binding protein for transport in the
blood? lipid-soluble
Which pattern of hormone secretion, represented by epinephrine, can have dramatic changes in
its concentration and circulating levels? acute hormone secretion
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.
1, 4, 3, 2 1, 4, 3, 2
Hormones are intercellular chemical signals that help coordinate growth, development and
reproduction.
Hormonal secretion can be regulated by All of these choices are correct.
Hormones with short half-lives regulate activities of rapid onset and short duration.
,What type of chemical messenger stimulates the cell that originally secreted it? autocrine
Secretion of one hormone by the action of another hormone is control by _______ stimuli.
hormonal
How do most water-soluble hormones travel in the bloodstream? as free hormones
Lipid-soluble hormones can be more easily excreted once they have water-soluble molecules
added to their structure in a process called conjugation.
What do all hormones have in common? They bind to and interact with a receptor on or in
the target cell.
Which of the following occurs when a hormone binds to a nuclear receptor? activation of
mRNA synthesis
In some forms of diabetes, an insensitivity to insulin seems to be present. This insensitivity could
be the result of down-regulation.
When a hormone binds to a membrane-bound receptor and activates G proteins,
Select one:
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. e. All of the choices may occur
from activated G proteins.
Medial means toward the middle or midline of the body
The shoulder is _____ to the elbow.
a. lateral
b. dorsal
c. distal
d. ventral
e. proximal proximal
The study of the external form of the body and its relationship to deeper structures is
Select one:
a. systemic anatomy.
b. regional anatomy.
c. molecular biology.
d. microbiology.
e. surface anatomy. e. surface anatomy.
and Answers| Latest Update
Which of the following is NOT true of water-soluble hormones?
Select one:
a. can dissolve in the blood as free hormones
b. large hormones need fenestrated capillaries to move out of the blood stream
c. most readily diffuse through capillary walls
d. rapidly degraded by proteases in the bloodstream
e. some may have carbohydrates attached to give a longer half-life c. most readily diffuse
through capillary walls
The endocrine system secretes chemicals that reach their targets through the bloodstream.
Once a lipid-soluble hormone is conjugated in the liver it can be more quickly eliminated
from the body.
A water-soluble hormone binds to its receptor on the plasma membrane. Arrange the events that
follow in correct sequence.
(1) alpha subunit-GTP complex alters cell activity
(2) GTP binds to the alpha subunit replacing GDP
(3) G-protein subunits separate from the receptor
(4) alpha subunit separates from other two subunits
,(5) G-protein subunits bind to the receptor 5, 2, 3, 4, 1
Which chemical class of hormone is more likely to need a binding protein for transport in the
blood? lipid-soluble
Which pattern of hormone secretion, represented by epinephrine, can have dramatic changes in
its concentration and circulating levels? acute hormone secretion
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.
1, 4, 3, 2 1, 4, 3, 2
Hormones are intercellular chemical signals that help coordinate growth, development and
reproduction.
Hormonal secretion can be regulated by All of these choices are correct.
Hormones with short half-lives regulate activities of rapid onset and short duration.
,What type of chemical messenger stimulates the cell that originally secreted it? autocrine
Secretion of one hormone by the action of another hormone is control by _______ stimuli.
hormonal
How do most water-soluble hormones travel in the bloodstream? as free hormones
Lipid-soluble hormones can be more easily excreted once they have water-soluble molecules
added to their structure in a process called conjugation.
What do all hormones have in common? They bind to and interact with a receptor on or in
the target cell.
Which of the following occurs when a hormone binds to a nuclear receptor? activation of
mRNA synthesis
In some forms of diabetes, an insensitivity to insulin seems to be present. This insensitivity could
be the result of down-regulation.
When a hormone binds to a membrane-bound receptor and activates G proteins,
Select one:
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. e. All of the choices may occur
from activated G proteins.
Medial means toward the middle or midline of the body
The shoulder is _____ to the elbow.
a. lateral
b. dorsal
c. distal
d. ventral
e. proximal proximal
The study of the external form of the body and its relationship to deeper structures is
Select one:
a. systemic anatomy.
b. regional anatomy.
c. molecular biology.
d. microbiology.
e. surface anatomy. e. surface anatomy.
