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Transcript of energy photosynthesis
chlorophyll pigments Outputs Plants make (release) two things during photosynthesis
Glucose & gas LEAVES (and the GREEN parts of plants)
contain pigments that collect the sun's
CHLOROPHYLL is the primary pigment
CARTENOIDS are lesser pigments Inputs 1. Energy from sunlight is trapped in chloroplasts
2. Light energy is converted to chemical energy
3. Chemical energy is stored
It takes place in a two steps Photosynthesis summary Inputs & outputs Occur in the thylakoid The LIGHT Reactions Occurs in the stroma 1. Light energy hits the chlorophyll pigments
2. The energy bonds a phosphate to an ADP molecule forming ATP
3. water molecules (H2O) are split by sunlight
4. NADP+ carries the hydrogen away from the thylakoid into the stroma
5. Oxygen gas is released Pigments are found in plant organelles called chloroplasts Dark Reactions a.k.a. the Calvin cycle Energy from the ATP is used
to combine carbon dioxide gas with hydrogen
to form glucose it becomes ADP The ADP and NADP+ return to the thylakoid to continue the process ADP leaves the stroma - returns to the thylakoid where energy again binds a phosphate - it becomes ATP and goes back to the stroma to make another glucose
NADP+ also returns to the thylakoid where it picks up another hydrogen from split water to become NADPH, it also goes back to the stroma...building that glucose A Continuous Cycle remember the hydrogen
was carried in by NADPH Photosynthesis in a chloroplast Pigments What is photosynthesis?
What does it use?
What does it make?
Why is it important? Reagan High School
2012 6 6 6
to balance the equation