Concept 8.1 Photosynthesis Uses Light Energy to Make Food

=8.1 Photosynthesis uses light energy to make food=

*Vocab
-chloroplast=> The cellular organelle where photosynthesis takes place.
-chlorophylls=> Chemical compound that give chloroplast to have green color
-Stroma=> thick fluid contained in the inner membrane of a chloroplast.
-Thylakoid=>Disk shaped sac in the stroma of a chloroplast; site of the light
-Light reaction=> The reactions that convert the energy in sunlight to chemical energy
- Calvin cycle=> cycle in plants that makes sugar from carbon dioxide, H+ions, and hight-energy electrons carried by NADPH

*The Structure of Chloroplasts
-All the green parts of the plant contain cells with chloroplasts and carry out photosynthesis
-Leaves has the mot chloroplasts in plants
-Stomatas are pores where CO2 enters and O2 exits
-Chloroplast's inner membrane has stroma, the thick fluid, and thylakoids are suspened in the stroma as disk-shaped sacs.
-Chloroplasts' shape is easy to organize the reaction of phosynthesis

*Overview of Photosynthesis
-Photosynthesis 6CO2+6H2O ->-> C6H12O6+6O2
- There are two main stages in photosynthesis: Light reactions & The Calvin Cycle
*light reactions produce ATP to calvin and get ADP+phosphate from Calvin cycle
*Calvin Cycle produces sugar

*Concept Check
1. Draw and label a simple diagram of a chloroplast that includes the following structures: outer an inner membranes, stroma, thylakoids.
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2.What are the reactants for photosynthesis? What are the products?
-Reactants: Carbon dioxide & Water
-Products: Glucose & Oxygen

3.Name the two main stages of photosynthesis. How are the two stages related?
- The two main stages are the light reactions and the calvin cycle. Both are related in the way they produce ATP and together, collaborate to produce O2 and Sugar.