Upload
gotsh1nw
View
7.807
Download
2
Embed Size (px)
DESCRIPTION
For this assignment, we were instructed to create a powerpoint presentation of at least 12 slides that adequately covered an academic subject of our choice. All sources for media is cited in the work cited at the end of the presentation.
Citation preview
PhotosynthesisNick Gotshall
What is Photosynthesis?
Takes Place in Plant’s Leaves
Series of Reactions in Plant Cells
Conversion of Light Energy
Provides Chemical Energy
Base of Almost All Food Chains
The “Typical” Plant CellEudicot
Genetic material
membrane bound organelles
Cell Wall
Vacuole
Chloroplasts
Overall ReactionCO2 + H2O sunlight Sugar + O2
Chlorophyll
Chlorophyll and sunlight must be present
Takes place in a series of two reactions
1. Light reaction=first
2. Calvin Cycle=second
Light ReactionDependent upon presence of sunlight
(photons)
Takes place in chloroplasts (thylakoid)
Transfers Electrons in four reactions
Overall Reaction
H2O sunlight/chlorophyll O2 + ATP + NADPH
Light Reaction ContinuedProduces …
Oxygen (O2)
Chemical Energy to fuel Calvin Cycle
ATP
NADPH
Calvin CycleTakes place in chloroplasts (stroma)
Formerly “Dark Reaction”
Does not require photons
Requires products of light reaction
Produces usable energy in series of reactions
Sugar
Importance of PhotosynthesisProvides base for almost all food chains
May have been initial means for evolution
Waste from photosynthesis is oxygen
Leads to increased biodiversity
Human Uses for PlantsFood
Raw materials
Fuel
Clothing
Currency
The List is endless!
Review; Photosynthesis…Takes place in plant’s leaves
Happens in chloroplasts in plant cell
Photosynthesis converts photons into sugar
Light reaction
Dark reaction
Very important for everyone!
Work CitedSlide 2
http://www.pdphoto.org/PictureDetail.php?mat=&pg=5528. Leaf- 2003-01-05.
Slide 4http://www.flickr.com/photos/skitzitilby/1242020466/.
under the horsechestnut tree enjoying peace and quiet Slide 8
http://www.butler.edu/herbarium/treeid/photosynthesis.jpg.
Slide 10http://www.flickr.com/photos/elena_norbiato/
2444950911/. Fruits and Colors.