Transcript Photosynthesis

Photosynthesis
How Energy is Obtained By Living
Things.
• All Energy comes from the sun.
ENERGY
from sun
How Energy is Obtained By Living
Things.
• All Energy comes from the sun.
• The process by which a cell captures
energy in sunlight and uses it to make
food is called photosynthesis.
Photosynthesis Chloroplast captures sun’s energy to
make food
How Energy is Obtained By Living
Things.
• All Energy comes from the sun.
• The process by which a cell captures
energy in sunlight and uses it to make
food is called photosynthesis.
• Nearly all living things obtain energy
either directly or indirectly from the
energy of sunlight captured from
photosynthesis.
Energy from the Sun
Organisms that cannot
make its own food,
animals are called a
heterotrophs.
Heterotrophs obtain food
by eating other
organisms.
Autotrophs:
Organisms that
manufacture their
own food by
Photosynthesis.
(plants)
How Photosynthesis Works
Photosynthesis is a
complex process.
Plants use the energy of
the sun to convert carbon
dioxide (CO2) and water
(H2O) into oxygen (O2) and
sugar (C6H12O6)
Photosynthesis is a two
stage process…
Stage 1:
Combine the ingredients to make the
batter
Stage 2:
Bake the Batter…
#1
Chloroplast from the
plant cells capture
energy
from sunlight.
Chloroplast from the
plant cells capture
energy
from sunlight.
#2
#3
Carbon dioxide enters the
leaf through openings
called stomata
Tiny holes called stomata in the
surfaces of leaves open and close to
allow plants to absorb carbon dioxide
from the atmosphere and to release
oxygen.
Tiny holes called stomata in
the surfaces of leaves open
and close to allow plants to
absorb carbon dioxide from the
atmosphere and to release
oxygen.
Chloroplast from the
plant cells capture
energy
from sunlight.
Captured light
energy is used to
produce
#2 sugars and
oxygen from water
and carbon dioxide
Carbon dioxide
enters the leaf
through openings
called stomata
#4
Water enters the
plant through
roots and moves
upward to the
leaf
Chloroplast from the
plant cells capture
energy
from sunlight.
Captured light
energy is used to
produce sugars and
oxygen from water
and carbon dioxide
Carbon dioxide
enters the leaf
through openings
called stomata
Water enters the
plant through roots
and moves upward
to the leaf
#5
Chloroplast from the
plant cells capture
energy
from sunlight.
Captured light
energy is used to
produce sugars and
oxygen from water
and carbon dioxide
Carbon dioxide
enters the leaf
through openings
called stomata
Water enters the
plant through roots
and moves upward
to the leaf
Sugars produced
are used by the
plant cells for
energy
Chloroplast from the
plant cells capture
energy
from sunlight.
#2
Captured light
energy is used to
produce sugars
and oxygen from
water and carbon
dioxide
Chloroplast from the
plant cells capture
energy
from sunlight.
Captured light
energy is used to
produce sugars and
oxygen from water
and carbon dioxide
Sugars produced are
used by the plant cells
for energy
Carbon dioxide
enters the leaf
through openings
called stomata
Water enters the
plant through roots
and moves upward
to the leaf
#6
• Lets carbon dioxide
•Tiny holes called stomata in the surfaces
in and
& oxygen
of leaves open
close to allowout
plantsof
to
absorb carbon
dioxide from the
leaves
atmosphere and to release oxygen.
• Tiny holes
Stomata
Oxygen exits
through stomata
on the underside
of the leaf
Chloroplast from the
plant cells capture
energy
from sunlight.
Captured light
energy is used to
produce sugars and
oxygen from water
and carbon dioxide
Sugars produced
are used by the
plant cells for
energy
Carbon dioxide
enters the leaf
through openings
called stomata
Water enters the
plant through roots
and moves upward
to the leaf
Oxygen exits
through stomatoa
on the underside
of the leaf
Chloroplast from the
plant cells capture
energy
from sunlight.
Captured light
energy is used to
produce sugars and
oxygen from water
and carbon dioxide
Sugars produced
are used by the
plant cells for
energy
Carbon dioxide
enters the leaf
through openings
called stomata
Water enters the
plant through roots
and moves upward
to the leaf
Oxygen exits
through stomatoa
on the underside
of the leaf
Chloroplast from the
plant cells capture
energy
from sunlight.
Captured light
energy is used to
produce sugars and
oxygen from water
and carbon dioxide
Sugars produced are
used by the plant cells
for energy
Carbon dioxide
enters the leaf
through openings
called stomata
Water enters the
plant through roots
and moves upward
to the leaf
#7
Oxygen exits
through stomatoa on
the underside of the
leaf
The Photosynthesis
Chemical Equation
Light Energy
6CO2 + 6H2O
C6H12O6 + 6O2
6CO2 + 6H2O
Carbon Dioxide
C6H12O6 + 6O2
C6H12O6 + 6O2
6CO2 + 6H2O
Water
6CO2 + 6H2O
C6H12O6 + 6O2
Sugar (glucose)
6CO2 + 6H2O
C6H12O6 + 6O2
Oxygen
Chloroplast from the
plant cells capture
energy
from sunlight.
Captured light
energy is used to
produce sugars and
oxygen from water
and carbon dioxide
Sugars produced are
used by the plant cells
for energy
Carbon dioxide
enters the leaf
through openings
called stomata
Water enters the
plant through roots
and moves upward
to the leaf
Light energy
6CO2 + 6H2O
C6H12O6 + 6O2
Oxygen exits
through stomatoa on
the underside of the
leaf