Download Section 10.1: Hormones: Chemical Regulators

hormones are chains of amino acids. Steroid hormones are derived from cholesterol and lipids
with four fused carbon rings.
3. Some hormones (protein hormones) bind with receptor molecules on the cell membrane, while
Read
468-471(steroid
Do Q#1-4,
6, 10 pg.pass
472 through the membrane and bind to receptor molecules
other pgs
hormones
hormones)
inside the cell, either in the cytosol or in the nucleus.
4. Hormones only produce effects in specific target cells that contain the correct receptor
Section
10.1:
Hormones:
Chemical
molecules for
that hormone.
Only the
cells of theRegulators
face would have the necessary receptors and
Section
10.1
Questions,
page
472
would grow hair.
1.
hormone
is vary.
a chemical
that
is produced in one part of the body that regulates a process in
5. A
Answers
will
Sample
answer:
another
of the body.
6.
Since part
it is derived
from cholesterol, it is a steroid hormone and should use an internal receptor
2.
The
two
most
common
types
hormones
are protein
hormones
steroid ahormones.
mechanism, passing
through
the of
lipid
bilayer plasma
membrane
andand
activating
receptor Protein
hormonesinside
are chains
of amino
acids.
Steroid hormones are derived from cholesterol and lipids
molecule
the cell’s
cytosol
or nucleus.
with
four
fused
carbon
rings.
7. Answers may vary according to the hormone students chose to illustrate. Answers should
3. Somethe
hormones
(protein
hormones)
with the
receptor
molecules
on the cell
membrane,
include
cell tissue
and cell
type that bind
produces
hormone,
the hormone’s
target
cell, thewhile
other
hormones
(steroid
hormones)
pass
through
the
membrane
and
bind
to
receptor
molecules
type of hormone (protein or steroid), and its action on target cell function.
inside
the cell,
the cytosol
orinclude:
in the nucleus.
8.
Answers
mayeither
vary.in
Reports
should
Calcitonin is being used clinically in osteoporosis
4.
Hormones
only
produce
effects
in
specific
target
that contain
thefrom
correct
receptor
therapy for both men and women. The hormone usedcells
is either
recovered
salmon
or
molecules
for
that
hormone.
Only
the
cells
of
the
face
would
have
the
necessary
and
produced by genetic engineering. Calcitonin also shows promise for other clinicalreceptors
applications,
would grow
hair. phantom limb pain (pain that seems to come from a now-amputated limb) and
including
treating
5.
Answers
will
vary.from
Sample
answer:
6. Sincepain
it is associated
derived
cholesterol,
is aspread
steroidtohormone
treating
with
cancer
thatithas
bone. and should use an internal receptor
passing
thehormone
lipid bilayer
plasma
membrane
activating
a receptor
9.mechanism,
The imbalance
of athrough
particular
affects
the entire
body and causes
so many
symptoms
molecule
inside themay
cell’s
cytosol
nucleus.
because
a hormone
have
manyortarget
cells in different parts of the body.
7. Answers
may vary can
according
theahormone
to illustrate.
Answersplasma
should
10.
Steroid hormones
diffusetointo
cell whilestudents
protein chose
hormones
cannot because
include
the
cell
tissue
and
cell
type
that
produces
the
hormone,
the
hormone’s
target
cell,
the
membranes have a phospholipid bilayer, which allows lipid-soluble steroid hormones to pass
type of hormone (protein or steroid), and its action on target cell function.
through.
8. Answers may vary. Reports should include: Calcitonin is being used clinically in osteoporosis
therapy for both men and women. The hormone used is either recovered from salmon or
produced by genetic engineering. Calcitonin also shows promise for other clinical applications,
including treating phantom limb pain (pain that seems to come from a now-amputated limb) and
treating pain associated with cancer that has spread to bone.
6.
it is derived
cholesterol,
it isaffects
a steroid
andand
should
useso
anmany
internal
receptor
9. Since
The imbalance
of afrom
particular
hormone
thehormone
entire body
causes
symptoms
mechanism,
passing
through
the
lipid
bilayer
plasma
membrane
and
activating
a
receptor
because a hormone may have many target cells in different parts of the body.
molecule
inside
the cell’s
or nucleus.
10. Steroid
hormones
can cytosol
diffuse into
a cell while protein hormones cannot because plasma
7.
Answers
may
vary
according
to
the
hormone
studentslipid-soluble
chose to illustrate.
Answers should
membranes have a phospholipid bilayer,
which allows
steroid hormones
to pass
Copyright
©
2012
Nelson
Education
Ltd.
Chapter
10:
The
Endocrine
System
10.1-1
include
the
cell
tissue
and
cell
type
that
produces
the
hormone,
the
hormone’s
target
cell, the
through.
type of hormone (protein or steroid), and its action on target cell function.
8. Answers may vary. Reports should include: Calcitonin is being used clinically in osteoporosis
therapy for both men and women. The hormone used is either recovered from salmon or
produced by genetic engineering. Calcitonin also shows promise for other clinical applications,
including treating phantom limb pain (pain that seems to come from a now-amputated limb) and
treating pain associated with cancer that has spread to bone.
9. The imbalance of a particular hormone affects the entire body and causes so many symptoms
because a hormone may have many target cells in different parts of the body.
10. Steroid hormones can diffuse into a cell while protein hormones cannot because plasma
Copyright © 2012
Education Ltd.
Chapter 10:steroid
The Endocrine
System
10.1-1
membranes
haveNelson
a phospholipid
bilayer, which allows lipid-soluble
hormones
to pass
through.
Copyright © 2012 Nelson Education Ltd.
Chapter 10: The Endocrine System
10.1-1