photosynthesis. chloroplasts photosynthesis in nature autotrophs:biotic producers; photoautotrophs;...
TRANSCRIPT
PhotosynthesisPhotosynthesis
Chloroplasts
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
6CO2 + 6H20 C6H12O6 + 6O2
light
6CO2 + 6H20 C6H12O6 + 6O2
light
The overall equation for photosynthesis is written as:
The overall equation for photosynthesis is written as: