Chapter 10

Chapter 10 - Chapter 10 Photosynthesis Chloroplasts are...

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Chapter 10 Photosynthesis Chloroplasts are found in the mesophyll, tissue in the interior of the leaf Two stages of Photosynthesis Light reactions Convert solar energy to chemical energy Water is split providing source of electrons and protons and giving off 02 as a by product Electrons and hydrogen ions, phosphate transfer to NADP+ and ADP outside of thylakoids Use solar power to reduce to NADPH Generate ATP, using chemosmosis to power the addition of a phosphate group to adp called photophosphorylation Then NADPH and ATP are released in the stroma Light is converted into chemical energy in NADPH and ATP The Calvin Cycle(Dark Reactions) Carbon fixation- carbon into organic compounds Reduce carbon to carbohydrates by electrons, reducing power is from NADPH Also uses ATP Making sugar Thus it is the calvin cycle that makes the sugar Only occurs during the daylight because the light reactions provide the NADPH and ATP needed for the calvin cycle Thykaloids of chloroplast are the sites of the light reactions
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Chapter 10 - Chapter 10 Photosynthesis Chloroplasts are...

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