Transcript Photosynthesis

1
Photosynthesis
Chapter 10 part II
2
Outline
• What is
• Chloroplast
Photosynthesis?
structures
• Properties of light
• Light Reaction
• What are waves?
• Dark Reaction
• Useable light colors
3
What is Photosynthesis?
4
Chloroplast
Mitochondria
5
Photosynthesis overview
• Plants are able to synthesis
glucose by using carbon dioxide
gas and water as the raw
materials.
• Sunlight is used as the energy to
power this transformation
• This chemistry takes place in the
chloroplast of the plant cell.
• A special chemical called
Chlorophyll makes this possible.
6
Properties of Sunlight
• Sunlight is a form of energy
• Energy travels in electromagnetic
waves that vary in size
• Colors are nothing more then
different size electromagnetic
waves.
• Objects that exhibit a color have
that color because it is the wave
that is reflected.
7
What is a wave?
8
Electromagnet spectrum
9
Light and plants
• Plants don’t really need green
light because it’s the light
wave that is reflected off the
plant
• Colors ( wave lengths) of red,
blue, violet are more
important to most plants.
10
Action spectrum
11
What traps the light?
• Inside the chloroplast are
chlorophylls that are able to
trap the energy from the
electromagnetic waves.
• This trap energy is used to
combine certain elements
into a compound
12
Cholorplast
13
Photosynthesis- Light reaction
Each type of
Chlorophyll
will absorb a
different
wave length.
14
Photosynthesis - Light Reaction
E
Chlorophyll
Light
15
Photosynthesis - Light Reaction
E
Chlorophyll
Light
16
Photosynthesis - Light Reaction
E
Chlorophyll
Light
17
Photosynthesis - Light Reaction
E
Chlorophyll
Light
18
Photosynthesis - Light Reaction
E
Water
Chlorophyll
Light
19
Photosynthesis - Light Reaction
E
Chlorophyll
Light
20
Photosynthesis - Light Reaction
E
Chlorophyll
Light
21
Photosynthesis - Light Reaction
E
Chlorophyll
Light
22
Photosynthesis - Light Reaction
H+
E
Free Oxygen
Chlorophyll
Light
23
Photosynthesis - Light Reaction
NADP
H+
E
Free Oxygen
ATP
Chlorophyll
Light
24
Photosynthesis- Dark Reaction
NADPH+
ATP
E
Calvin Cycle
25
Dark Reaction-2
ATP
NADPH+
Calvin Cycle
26
Dark Reaction-3
ADP
NADP
H+
Calvin Cycle
27
Dark Reaction-4
NADPH+
ATP
H+
Calvin Cycle
Carbon
Dioxide
28
Dark Reaction-5
NADPH+
ATP
H+
Calvin Cycle
29
Dark Reaction-6
NADPH+
ATP
Carbon
Calvin Cycle
H+
30
Dark Reaction-7
NADPH+
ATP
Carbon
Process repeated six times
Calvin Cycle
H+