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Wake-up
1. What is the role of pigments in photosynthesis?
1. Where can they be found?
1. Write the summative equation for photosynthesis using words.
Photosynthesis II
Christopherson
Photosynthesis Function
To produce glucose
(food) for producers
The formula for glucose:
C6H12O6
Photosynthesis: How?Plants absorb sunlight energy, carbon
dioxide and water to make glucose
The giant sequoia tree is one of the largest trees on earth. It starts as a small seedling and grows into an enormous tree. Five children can stretch their arms across the width of the truck of one of the large sequoia trees! Where did most of the MATTER that makes up the wood and leaves of this huge tree originally come from? Circle the best answer.
• Sunlight• Water• Soil• Carbon dioxide• Oxygen• Minerals• Chlorophyll
Explain your thinking. How did you decide where most of the matter that makes up this tree came from?
Photosynthesis Summative Equation (Formula)
CO2 H2O+ C6H12O6 + O2
Sunlight Energy
Reactants What is needed
Products What is produced
Light Dependent Reaction: Location
Thylakoid: Location of pigments; absorb sunlight
energy
Light-Dependent Reaction
H2O
H
O
H O2
1. Pigments absorb sunlight energy2. Plants absorb
water; break it down into H’s and O’s
3. Oxygen’s combine and leave as oxygen gas
O
H
H
Light-Dependent Reaction: Reactants
H2O
H
O
H
O2
Water
O
H
H
Hint: Look at arrows going in
SunlightEnergy
Light-Dependent Reaction: Products
H2O
H
O
H
O2
O
H
H
Hint: Look at arrows going out
Oxygen
Wake-up
1. Write the summative equation for photosynthesis.
2. In examining the equation in #1, how does the light-dependent reaction contribute to it?????
Calvin Cycle: Location
Stroma: Fluid inside the chloroplast
Calvin Cycle
CO2 O2
CCO2
CO2
CO2
CO2
CO2
CC
C
CC
O2
O2
O2
O2
O2
1. Carbon dioxide is released by consumers and producers
2. Producers absorb carbon dioxide; break off the carbon; and release oxygen.3. Process continues until six carbons are collected
4. The six carbons, the stored energy from the sun, hydrogen, and oxygen ALL combine together to make Glucose C6H12O6
C6H12O6
Calvin Cycle
CO2 O2
CCO2
CO2
CO2
CO2
CO2
CC
C
CC
O2
O2
O2
O2
O2
C6H12O6
Why are 6 carbon dioxide molecules absorbed?
Need 6 carbons from carbon dioxide to make:
C6H12O6Glucose
Reactants: Calvin Cycle
CO2 O2
CCO2
CO2
CO2
CO2
CO2
CC
C
CC
O2
O2
O2
O2
O2
C6H12O6
Carbondioxide
Products: Calvin Cycle
CO2 O2
CCO2
CO2
CO2
CO2
CO2
CC
C
CC
O2
O2
O2
O2
O2
C6H12O6
Oxygen
Glucose
The giant sequoia tree is one of the largest trees on earth. It starts as a small seedling and grows into an enormous tree. Five children can stretch their arms across the width of the truck of one of the large sequoia trees! Where did most of the MATTER that makes up the wood and leaves of this huge tree originally come from? Circle the best answer.
• Sunlight• Water• Soil• Carbon dioxide• Oxygen• Minerals• Chlorophyll
Explain your thinking. How did you decide where most of the matter that makes up this tree came from?
Photosynthesis Song
