Biol 1406 Ch 5-7 PS Summer 2010

Biol 1406 Ch 5-7 PS Summer 2010 -...

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Unformatted text preview: Chapters
5­7
Problem
Set
 
 1.

What
are
the
monomers
or
components
used
in
each
of
the
following
 macromolecules?

NOTE:

In
some
instances
it
may
only
be
one
subunit,
while
in
 other
instance
there
may
be
a
variety
of
different
molecules
used.
 
 
 Complex
Carbohydrates:
 
 
 Phospholipids:
 
 
 Proteins:
 
 
 Fats:
 
 
 Nucleic
Acids:
 
 
 
 2.
Please
identify
the
different
types
linkages
that
are
used
to
form
large
 carbohydrates,
proteins,
and
lipids.
 
 
 
 
 
 
 
 3.

Please
identify
the
following
structures
or
words
according
to
the
classification
of
 macromolecule
to
which
they
belong.

If
the
structure
is
a
fat,
please
state
 whether
it
is
saturated
or
unsaturated


 Note:

You
do
not
have
to
state
the
purpose/function
of
the
molecule,
but
instead
 must
simply
state
what
type
of
macromolecule
it
is.
 
 
 i)
Catechol
Oxidase
 
 
 
 ii)
Mannose
 
 
 
 
 
 
 
 iii)
 
 
 
 
 
 iv)
 

 
























 
 
 
 
 
 
 4.

Please
(a)
identify
the
following
molecule,
(b)
identify
what
class
of
 macromolecules
it
will
act
as
a
monomer
for,
(c)
circle
the
part
of
this
molecule
that
 is
constant
among
all
molecules
in
its
class,
(d)
box
in
the
part
of
the
molecule
that
 makes
it
unique,
and
(e)
whether
this
unique
portion
makes
it
polar,
non‐polar,
 acidic,
or
basic.
 
 
 a)
 
 b)
 
 c)
Use
above
picture
 
 d)
Use
above
picture
 
 e)
 
 
 5.

The
endomembrane
system
is
used
to
generate
and
modify
proteins
before
they
 are
exported
to
their
respective
location
in
or
out
of
the
cell.

Please
describe
what
 problems
will
arise
in
this
system
in
the
given
scenarios
below.

1­2
sentences
of
 explanation
will
suffice.
 
 a)

A
cell
is
poisoned
and
all
of
its
ribosomes
are
destroyed.
 
 
 
 
 
 b)

A
particular
toxin
is
released
in
the
cell
that
prevents
the
endoplasmic
 reticulum
from
forming
vesicles.
 
 
 
 
 c)

A
cell
is
lacking
its
golgi
complex.
 
 
 
 
 d)

A
particular
toxin
is
released
in
the
cell
that
prevents
the
phosphorylation
of
 motor
proteins
that
normally
move
along
the
microtubules.
 
 
 
 
 6.

In
the
following

scenarios,
please
state
what
form
of
cellular
junction
has
either
 been
affected
or
is
being
utilized.
 
 a)

A
particular
cell
becomes
cancerous.

It
begins
to
produce
certain
proteins
that
 only
cancer
cells
produce.

These
proteins
moved
through
a
connection
to
a
 neighboring
cell,
which
in
turn
sends
a
protein
back
to
the
cancer
cell
that
kills
it.
 
 
 
 
 b)

The
body
is
wounded
in
a
way
that
breaks
apart
collections
of
cells
that
house
 fluid
between
their
membranes.

With
the
connections
between
the
cells
broken,
the
 fluid
freely
moves
in
the
extracellular
space.
 
 
 
 
 
 7.

The
following
U‐bend
contains
a
selectively
permeable
membrane
in
the
center.

 The
left
side
of
the
U‐bend
is
filled
with
12
g
NaCl
and
40
mL
of
H2O.

The
right
hand
 side
of
the
U‐bend
is
filled
with
6
g
NaCl
and
80
mL
of
H2O.


 
 
 
 
 
 a)

If
both
NaCl
and
H2O
can
move
through
the
membrane,
please
state
how
much
 NaCl
and
how
much
H2O
will
be
on
each
side
of
the
U‐bend.
 
 
 
 Left
side
 
 
 
 Right
side
 
 NaCl:
 
 
 
 
 NaCl:
 
 
 H2O:
 
 
 
 
 H2O:
 
 
 
 b)

If
H2O
can
move
through
the
membrane,
but
NaCl
cannot,
please
state
how
much
 NaCl
and
how
much
H2O
will
be
on
each
side
of
the
U‐bend.
 
 
 
 Left
side
 
 
 
 Right
side
 
 NaCl:
 
 
 
 
 NaCl:
 
 
 H2O:
 
 
 
 
 H2O:
 
 In
this
scenario,
will
the
level
of
solution
be
equal
on
each
side
of
the
U­bend?
 
 
 
 Will
the
concentration
of
the
solution
be
equal
on
each
side
of
the
U­bend?
 8.

The
structure
below
is
a
protein
that
facilitates
the
movement
of
molecules
 across
a
cellular
membrane
from
the
outside
of
the
cell
to
the
inside
of
the
cell.

In
 the
following
scenarios,
please
state
whether
this
protein
acts
by
way
of
active
or
 passive
transport.
 
 
 a)

The
concentration
of
the
molecules
outside
of
the
cell
is
greater
than
that
of
their
 concentration
inside
of
the
cell.
 
 
 
 If
active,
what
molecule
is
needed
for
the
protein
to
function?
 
 b)

The
concentration
of
the
molecules
outside
of
the
cell
is
less
than
that
of
their
 concentration
inside
of
the
cell.
 
 
 
 If
active,
what
molecule
is
needed
for
the
protein
to
function?
 
 
 
 ...
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