Presentation on theme: "Photosynthesis. Chloroplasts Photosynthesis in nature Autotrophs:biotic producers; photoautotrophs; chemoautotrophs; obtains organic food without eating."— Presentation transcript:
Photosynthesis in nature Autotrophs:biotic producers; photoautotrophs; chemoautotrophs; obtains organic food without eating other organisms Heterotrophs: biotic consumers; obtains organic food by eating other organisms or their by-products (includes decomposers)
Warm-Up What are the two parts of photosynthesis? (Look in your book, pg. 93) What are the reactants? What are the products? How are the products of photosynthesis important to us?
The chloroplast Sites of photosynthesis Pigment: chlorophyll Plant cell: mesophyll Gas exchange: stomata Double membrane Thylakoids, grana, stroma
Photosynthesis A complex process in which visible sunlight is converted into chemical energy in carbohydrate molecules. Occurs within the chloroplasts of cells
Photosynthesis Light Reaction Occurs within the thylakoid membrane inside of the chloroplasts Light Independent Reaction (Dark Reaction) Occurs within the Stroma
An overview of photosynthesis
6CO 2 + 6H 2 0 C 6 H 12 O 6 + 6O 2 light 6CO 2 + 6H 2 0 C 6 H 12 O 6 + 6O 2 light The overall equation for photosynthesis is written as: