Biol 1406 Ch 8-10 PS Summer 2010

Biol 1406 Ch 8-10 PS Summer 2010 -...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: 1.

In
the
following
scenarios,
please
state
whether
the
reaction
is
a)
endergonic
or
 exergonic,
b)
if
the
ΔG
would
be
less
than
or
greater
than/equal
to
zero,
and
c)
if
the
 reaction
would
occur
spontaneously
or
not.
 
 I.


 A
+
B
 
C
+
D
+
Energy
 
 
 
 
 II.
 
 
 
 III.
 
 
 
 
 
 IV.
 
 
 
 2.

In
the
following
reactions
please
draw
arrows
to
demonstrate
which
compound
 is
being
reduced
and
which
is
be
oxidized.

Furthermore,
in
the
spaces
provided,
 please
state
what
the
reducing
agent
and
what
the
oxidizing
agent
are.
 
 I.


 
 C O 2 
+ 
2 H 2 O 
 
C H 4 
+ 
2 O 2 
 
 
 Reducing
agent:
______________
 Oxidizing
agent:
______________
 
 II.
 
 C 6 H 1 2 O 6 
+ 
6 O 2 
 
6 C O 2 
+ 
6 H 2 O 
 
 
 Reducing
agent:
______________
 Oxidizing
agent:
______________
 
 
 3.

In
the
three
scenarios
below,
please
state
what
is
causing
the
loss
of
enzymatic
 activity:

Denaturation,
Competitive
inhibition
or
Non­competitive
inhibition.
 
 I.

A
certain
factor
is
placed
into
the
environment
with
the
enzyme.

It
binds
to
the
 enzyme
on
the
active
site
and
prevents
substrate
binding.

Because
the
substrate
 cannot
bind,
the
enzyme
cannot
catalyze
the
reaction.
 
 
 
 II.
A
certain
factor
is
placed
into
the
environment
with
the
enzyme.

It
binds
to
the
a
 certain
region
of
the
enzyme
and
causes
an
allosteric
change
to
occur
at
the
active
 site.
This
allosteric
change
prevents
substrate
binding.

Because
the
substrate
 cannot
bind,
the
enzyme
cannot
catalyze
the
reaction.
 
 
 
 III.

An
enzyme
is
taken
from
a
human
cell
and
placed
inside
of
a
bacterium.

This
 particular
bacterium
is
thermophilic
and
is
placed
back
in
its
natural
environment,
 at
the
mouth
of
a
hot
springs.

However,
the
mammalian
enzyme
does
not
exhibit
 any
kind
of
activity.
 
 
 4.

Please
place
the
boxed
terms
underneath
the
word
that
best
represents
where
in
 the
cell
they
exist,
take
place,
or
are
produced.
 
 
 
 
 
 C y sto p la sm 
 
 
 
 
 M it o c h o d r ia 
 
 
 
 
 
 
 
 
 
 
 
 5.

Please
state
the
number
of
ATP
molecules
invested
and
created
in
each
of
the
 following
processes.

If
ATP
is
both
invested
and
created,
the
please
state
the
net
 amount
of
ATP
molecules
produced
in
the
space
provided.

Additionally,
please
state
 whether
the
process
can
be
performed
by
prokaryotes,
eukaryotes,
or
both.
 
 Glycolysis
 ATP
Invested:
 
 ATP
Created:
 
 Net
ATP:
 
 Organisms
capable
of
performing
process:
 
 Citric
Acid
Cycle
 ATP
Invested:
 
 ATP
Created:
 
 Net
ATP:
 
 Organisms
capable
of
performing
process:
 
 Oxidative
Phosphorylation
 ATP
Invested:
 
 ATP
Created:
 
 Net
ATP:
 
 Organisms
capable
of
performing
process:
 
 
 6.

What
is
the
primary
difference
in
products
produced
by
chloroplasts
using
the
 process
of
linear
or
cyclic
electron
flow?


 
 
 
 
 When
would
each
form
of
electron
flow
be
used
in
terms
of
the
different
stages
of
 photosynthesis?


 
 
 
 Which
photosytem
or
photosystems
are
used
in
each
process?


 
 
 
 
 Which
of
theseforms
of
electron
flow
most
likely
existed
first?
 
 
 7.
Please
denote
similarities,
or
differences
between
these
two
organelles
that
exist.
 
 Organelle
 Mitochondria
 Chloroplast
 Cellular
process
 
 
 performed
by
organelle
 Initial
energy
source
at
 
 
 very
beginning
of
the
 entire
cellular
process
 (chemical
or
light,
and
 what
kind)
 Membrane
structure
 
 
 (Single
or
Double)
 
 Direction
of
 
 
 Chemiosmosis
 
 (From
what
region
to
 
 what
region)
 
 ...
View Full Document

Ask a homework question - tutors are online