D "
↳
I EN
units
cells The
working
:
of life .
,KEY CONCEPTSnits
>
-
Cells are the fundamental units of life .
They have the
ability
-
to
p84 .
of life ·
Reproduce
·
Respond to environment
·
Bell Theory ·
·
Harness
Evolve
energy
The cell
Theory
·
:
. Cells
1 are thefundamental units of life .
⑭
2) All
. composedof cells 3 important implications
living organisms are :
. All
3 cells from
come
preexisting
cells
studying cells
studying life
·
=
ind
theory: from
the functions of cell of bacterium are
a
single
common a
ancestor similar cells
a to
approximately 30 trillion human
·
life is continuous
Cells contain water and molecules all cells come from cell
single
·
a
They use these molecules to : a fertilized
egg (zypote)
transform matter and
energy origin of life earth marked
-
·
on was
-
respond to environment
by the
origin
of the first cells
reproduce
Organisms composed of cells
·
are :
↳Unicellular :
Always single cells
·
·
Bacteria ,
archaea ,
amoeba ect .
↳ Multicellular :
·
Hundreds to trillions of cells
·
Mammals , plants ect .
Cells arise from cells
pre-existing
·
Cell division
·
Parent cells divide
producing daughter
·
cells
,
, ~
Surface area/Volume Robert Hooke
surface area/volume
↓ Tr Cr
small cell practical necessity of
size is
object
·
as size an increases
C
if the size increases the volume a surface area increases but at different rates
3
volume increase : <C
Surface area increase : xh
· volume is
proportionalchemical to its
activity
·
surface area determines the amount of substances that can
enter from the outside 3 the amount of waste
products
that exit
As cell chemical
a
grows larger ,
it's activities ,
and thus its need for resources and its rate of waste
production, usually increase faster than its surface area
Largeorphismshavemore smallcell
n
a
largeenough
volume
surface area-to-volume ratioa ideal internal
·
while surface area-to-volume ratio limits cell size
,
some cells
change
their shape become
to
larger
shape
change involve
can
increased
infoldings
-
-
size increase in one dimension
-
increased rate at which substances more
their
boundry
across .
·
surface area-to-volume ratio
accounts for the size limits of
the cell
↳
I EN
units
cells The
working
:
of life .
,KEY CONCEPTSnits
>
-
Cells are the fundamental units of life .
They have the
ability
-
to
p84 .
of life ·
Reproduce
·
Respond to environment
·
Bell Theory ·
·
Harness
Evolve
energy
The cell
Theory
·
:
. Cells
1 are thefundamental units of life .
⑭
2) All
. composedof cells 3 important implications
living organisms are :
. All
3 cells from
come
preexisting
cells
studying cells
studying life
·
=
ind
theory: from
the functions of cell of bacterium are
a
single
common a
ancestor similar cells
a to
approximately 30 trillion human
·
life is continuous
Cells contain water and molecules all cells come from cell
single
·
a
They use these molecules to : a fertilized
egg (zypote)
transform matter and
energy origin of life earth marked
-
·
on was
-
respond to environment
by the
origin
of the first cells
reproduce
Organisms composed of cells
·
are :
↳Unicellular :
Always single cells
·
·
Bacteria ,
archaea ,
amoeba ect .
↳ Multicellular :
·
Hundreds to trillions of cells
·
Mammals , plants ect .
Cells arise from cells
pre-existing
·
Cell division
·
Parent cells divide
producing daughter
·
cells
,
, ~
Surface area/Volume Robert Hooke
surface area/volume
↓ Tr Cr
small cell practical necessity of
size is
object
·
as size an increases
C
if the size increases the volume a surface area increases but at different rates
3
volume increase : <C
Surface area increase : xh
· volume is
proportionalchemical to its
activity
·
surface area determines the amount of substances that can
enter from the outside 3 the amount of waste
products
that exit
As cell chemical
a
grows larger ,
it's activities ,
and thus its need for resources and its rate of waste
production, usually increase faster than its surface area
Largeorphismshavemore smallcell
n
a
largeenough
volume
surface area-to-volume ratioa ideal internal
·
while surface area-to-volume ratio limits cell size
,
some cells
change
their shape become
to
larger
shape
change involve
can
increased
infoldings
-
-
size increase in one dimension
-
increased rate at which substances more
their
boundry
across .
·
surface area-to-volume ratio
accounts for the size limits of
the cell
