Biology111Chapter8Questions

Alloftheabove 5whichofthefollowingstatestherelevanceof

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Unformatted text preview: all
of
the
above

 ____5.
Which
of
the
following
states
the
relevance
of
the
first
law
of
thermodynamics
to
biology?
(Concept
8.1)

 a) The
total
energy
taken
in
by
an
organism
must
be
greater
than
the
total
energy
stored
or
released
by
the
organism.

 b) Energy
can
be
freely
transformed
among
different
forms
as
long
as
the
total
energy
is
conserved.

 c) Photosynthetic
organisms
produce
energy
in
sugars
from
sunlight.

 d) All
organisms
must
produce
some
heat
as
a
result
of
the
processes
of
life.

 e) Living
organisms
must
increase
the
entropy
of
their
surroundings.

 ____6.
Which
is
the
most
abundant
form
of
energy
in
a
cell?
(
Concept
8.1)

 a) chemical
and
electrical
 b) mechanical
energy

 d) kinetic
energy

 gradients

 c) heat

 e) chemical
energy

 ____8.
According
to
the
second
law
of
thermodynamics,
which
of
the
following
is
true?

 a) Energy
conversions
increase
the
order
in
the
universe.

 b) The
total
amount
of
energy
in
the
universe
is
constant.

 c) The
decrease
in
entropy
associated
with
life
must
be
compensated
for
by
an
increase
in
entropy
in
the
environment
 that
life
occurs
in.

 d) The
entropy
of
the
universe
is
constantly
decreasing.

 e) All
reactions
produce
some
heat.

 
 ____9.

If
the
entropy
of
a
living
organism
is
decreasing,
which
of
the
following
is
most
likely
to
be
occurring

 simultaneously?

 a) The
entropy
of
the
organism's
environment
must
also
be
decreasing.

 b) Heat
is
being
used
by
the
organism
as
a
source
of
energy.

 c) The
first
law
of
thermodynamics
is
being
violated.

 d) Energy
input
into
the
organism
must
be
occurring
to
drive
the
decrease
in
entropy.

 e) In
this
situation,
the
second
law
of
thermodynamics
must
not
apply.

 
 ___16.

An
exergonic
(spontaneous)
reaction
is
a
chemical
reaction
that
_____.
(Concept
8.2)

 a) occurs
only
when
an
enzyme
or
other
catalyst
is
 d) is
common
in
anabolic
pathways

 present

 e) leads
to
a
decrease
in
the
entropy
of
the
universe

 b) cannot
occur
outside
of
a
living
cell

 
 c) releases
energy
when
proceeding
in
the
forward
 direction

 ___19.

Which
of
the
following
is
an
example
of
the
cellular
work
accomplished
with
the
free
energy
derived
from
the

 hydrolysis
of
ATP?
(Concept
8.3)

 a) mechanical
work,
such
as
the
beating
of
cilia

 c) c...
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This note was uploaded on 09/27/2013 for the course BIO 111 taught by Professor Jefferyray during the Fall '13 term at North Alabama.

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