3Review of Photosynthesis At your tables pull out your notes and come up with answers to these questions.What is Photosynthesis?Where does the mass of a plant come from as it grows?What are the reactants of Photosynthesis (what goes in)? What are the products (what comes out)?
4How does photosynthesis really work? Plants capture sunlight using light absorbing molecules called pigments.Chlorophyll: is found in chloroplast, is the principal pigment for capturing sunlight.
5ChlorophyllThere are two types of chlorophyll (A and B) and each captures different wave lengths of UV light.
6Photosynthesis can be broken up into three steps Light dependent reactionsElectron Transport ChainLight independent reactions (Calvin Cycle)
7The anatomy of a Chloroplasts Thylakoids are saclike membranes which contain the chlorophyll. These are arranged in stacks called grana.This is where the light-dependent reactions occur.
8Chloroplast anatomyThe stroma is the region outside the thylakoid membranes. This is where the light-independent reactions take place.
9Light-Dependent Reactions Light-dependent reactions require light to function, and produce three major products.OxygenATPNADPH
10Products of the Light-dependent reactions These products are used to conduct the processes in the light-independent reactions.Light-dependent
11ATPATP is a unit of cellular energy responsible for transferring energy within the cell for metabolism
12NADPHThis is an electron carrier used to transfer energy.
13Electron Transport Chain Electron transport chains are the cellular mechanisms used for taking energy from sunlight.This requires electronCarriers like NADPH
14Light-independent Reactions Light-independent reactions take place in the stroma, outside of the thylakoid membraneThe Calvin Cycle uses ATP NADPH from the previous reactions to produce high-energy sugars.
15Calvin CycleBegins with six CO2 molecules and ATP to create a six carbon sugar (C6H12O6).Calvin Cycle