1. The Need for Energy  Energy is essential to life.  The molecule that stores energy is ATP or adenosine triphosphate.

2. The Need for Energy  ATP is the energy carrier for the cell. ATP allows energy to be immediately available for cell processes.

3. Photosynthesis  Photosynthesis is the process that uses the sun’s energy to make simple sugars. 6CO 2 + 6H 2 O C 6 H 12 O 6 + 6O 2  Photosynthesis takes place in the chloroplast of plant and algal cells. Where are chloroplasts found?

5. Photosynthesis  Pigments like chlorophyll are required for photosynthesis to take place.  Photosynthetic pigments are stored in the thylakoids of the chloroplast. Thylakoid grana

6. Vein

7. Water enters the plant through the roots and travels up to the leaf through the veins. Water then travels to each cell through a process known as OSMOSIS.

8. Stomata

9. Carbon dioxide then travels to each cell through a process known as Diffusion. Carbon dioxide enters the leaf through the stomata.

10. Photosynthesis  Photosynthesis happens in 2 phases: Light-dependent reaction  Chloroplast Stage  Electron Transport Chain Light-independent reaction  Calvin cycle  Carbon Fixation  Produces Glucose

11. Light Dependent Reaction  The Light Dependent Reaction converts light energy into chemical energy and produces ATP.  The products of the Light Dependent Reaction are used to fuel the Light Independent Reaction. Light H2OH2O O2O2 ATP H chloroplast

12. Light Independent Reaction  The Light Independent Reaction takes place in the stroma of the chloroplast. ATP CO2 C 6 H 12 O 6 H stroma thylakoids chloroplast