Photosynthesis
Food for thought…
What materials
go in?
What materials are
released?
Where does the matter
in the tree come from?
Warm Up…
1. In which cell structure does photosynthesis
occur?
2. What types of living things carry out
photosynthesis?
Photosynthesis
• most important chemical reaction on
our planet!
Equation
Sunlight (ENERGY!)
CO2+ H2O
reactants/substrates
C6H12O6 + O2
products
Describe Photosynthesis:
• Transforms light energy to chemical
energy (stored in glucose).
• Occurs in plants, algae and some
bacteria
• Takes place in the chloroplasts, using
chlorophyll, the green pigment in
plants
SUGAR!
• Some is used for energy right away
• Stored as starch
• Converted into other biochemicals
Why is this important to us?
Food!
-Plants take energy from the sun and turn it
into chemical energy, (in food molecules),
that living things can use!
Oxygen!
- Plants give off oxygen as a bi-product of
photosynthesis: animals, (like us), need this
to breathe!!
Photosynthesis
Where does it
occur?(organelle)
Why is it
important?
What is the
Substrate?
Products?
What is the
equation?
Who does it?
Color in the Chloroplast Diagram!
•
•
•
•
•
•
•
•
•
Chloroplast – Green
Outer Membrane – Dark Green
Inner Membrane – Light Green
Stroma – Light Blue
Grana & Thylakoid – Dark Blue
Genetic Material – Purple
Ribosome – Orange
Starch Grain – Red
Photosynthesis - Yellow
Before you leave… Post it!!!
• 1. Write the formula for Photosynthesis.
• 2. Where (think organelle!) does Photosynthesis
happen?
• 3. List 2 reasons Photosynthesis is Important!