Biology111Chapter8Questions

Chemicalworksuchasthesynthesisofnewprotein b

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: hemical
work,
such
as
the
synthesis
of
new
protein

 b) transport
work,
such
as
the
active
transport
of
an
 d) all
of
the
above

 ion
into
a
cell

 e) none
of
the
above

 
___20.


In
general,
the
hydrolysis
of
ATP
drives
cellular
work
by
_____.
(Concept
8.3)

 a) changing
to
ADP
and
 b) releasing
free
energy
that
can
 d) acting
as
a
catalyst

 phosphate

 be
coupled
to
other
reactions

 e) lowering
the
free
energy
of
 c) releasing
heat

 the
reaction

 
 ___27.


A
chemical
reaction
is
designated
as
exergonic
rather
than
endergonic
when
_____.
(Concept
8.2
and

Concept
8.4)

 a) activation
energy
is
required

 d) the
potential
energy
of
the
products
is
less
than
the
 b) the
products
are
less
complex
than
the
reactants

 potential
energy
of
the
reactants

 c) activation
energy
exceeds
net
energy
release

 e) it
absorbs
more
energy

 
 ___29.



The
mechanism
of
enzyme
action
is
_____.
(Concept
8.4)

 a) providing
energy
to
speed
up
the
rate
of
the
 d) changing
endergonic
into
exergonic
reactions

 reaction

 e) lowering
the
free
energy
change
of
a
reaction

 b) lowering
the
energy
of
activation
for
a
reaction

 

 c) changing
the
direction
of
thermodynamic
 equilibrium

 
 ___33.



Which
of
the
following
statements
about
enzymes
is
correct?
(Concept
8.4)

 a) Most
enzymes
are
proteins.

 b) An
enzyme
is
not
consumed
by
the
catalytic
process.

 c) An
enzyme
is
very
specific
in
terms
of
which
substrate
it
binds
to.

 d) An
enzyme
lowers
the
activation
energy
of
a
chemical
reaction.

 e) all
of
the
above

 
 ___35.



Whatis
meant
by
the
"induced
fit"
of
an
enzyme?
(Concept
8.4)

 a) The
substrate
can
be
altered
so
that
it
is
induced
to
fit
into
the
enzyme's
active
site.

 b) The
enzyme
structure
is
altered
so
that
it
can
be
induced
to
fit
many
different
types
of
substrate.

 c) The
presence
of
the
substrate
in
solution
induces
the
enzyme
to
slightly
change
its
structure.

 d) The
shape
of
the
active
site
is
nearly
perfect
for
specifically
binding
the
enzyme's
substrate(s).

 e) The
enzyme
changes
its
shape
slightly
as
the
substrate
binds
to
it.

 

 
...
View Full Document

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.

Ask a homework question - tutors are online