Transcript Photosynthesis_for_Fish_Migration

Photosynthesis:
What is happening?
Have you ever heard water being
called by a different name?
H
O
H
Have you ever heard carbon dioxide
being called by a different name?
Carbon
dioxide
bubbles in a
glass of
soda.
O
C
O
Both water and
carbon dioxide
play an
important part
in
photosynthesis.
Water comes up
the stem and
into the leaves
Carbon dioxide
enters the
stomata (openings)
in the underside of
the leaf.
Your desktop is
going to be the
inside of the leaf.
On your desk
make as many
water molecules
as you can
On your desk
make as many
carbon dioxide
molecules as you
can
O
H
O
C
H
O
Energy
from the
Sun
is
absorbed
by the
plant
Chemical Reaction
The bonds holding
the water and carbon dioxide
together are broken.
Sugar is made by the plant.
So what does a
sugar particle
look like?
Let’s see…..
Sugar is the product C H O6
6 12
O
H
C
H
H
O
H
C
O
H
H
C
H
H
C
O
O
H
H
C
H
C
O
H
What do you notice?
What is left over?
Have you ever heard the
saying, “Plants make oxygen”?
O
O
O
2
How many oxygen gas molecules
were you able to put together?
How does the
oxygen get
into the
atmosphere?
Click here to see…
The sugar
stays in the
leaf.
When animals
eat the plant,
they get the
sugar as food.
Photosynthesis
Carbon
dioxide
+
CO
2
+
water + light
energy
H O + light
2 energy
sugar + oxygen
C H O6 + O
6 12
2