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: C 6 H 12 O 6

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?

*Where are we?

Photosynthesis Summative Equation (Formula) CO 2 H2OH2O + C 6 H 12 O 6 + O2O2 Sunlight Energy Reactants What is needed Products What is produced

Light Dependent Reaction: Location Thylakoid: Location of pigments; absorb sunlight energy

Light-Dependent Reaction H2OH2O H O H O2O2 1.Pigments absorb sunlight energy 2. 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 H2OH2O H O H O2O2 Water O H H Hint: Look at arrows going in Sunlight Energy

Light-Dependent Reaction: Products H2OH2O H O H O2O2 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 CO2CO2 O2O2 C CO2CO2 CO2CO2 CO2CO2 CO2CO2 CO2CO2 C C C C C O2O2 O2O2 O2O2 O2O2 O2O2 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 C 6 H 12 O 6 C 6 H 12 O 6

Calvin Cycle CO 2 O2O2 C C C C C C O2O2 O2O2 O2O2 O2O2 O2O2 C 6 H 12 O 6

Why are 6 carbon dioxide molecules absorbed? Need 6 carbons from carbon dioxide to make: C 6 H 12 O 6 Glucose

Reactants: Calvin Cycle CO 2 O2O2 C C C C C C O2O2 O2O2 O2O2 O2O2 O2O2 C 6 H 12 O 6 Carbon dioxide

Products: Calvin Cycle CO 2 O2O2 C C C C C C O2O2 O2O2 O2O2 O2O2 O2O2 C 6 H 12 O 6 Oxygen Glucose

PhotosynthesisPhotosynthesis Stop 2:23

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