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BioFlix: The Calvin Cycle (The C3 Cycle)

by Pearson
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The Calvin cycle takes place outside the thylakoids in the stroma the thick fluid of the chloroplast At the beginning of the cycle carbon dioxide molecule combine with molecules called RUBP The resulting molecules go through a series of reactions powered by ATP and NADPH from the light reactions Sugar molecules known as G3P's are produced Most of the G3P's are rearranged back into RUBP's that will begin the Calvin cycle again But the important product of photosynthesis is the remaining G3P sugar Some G3P's are used to build glucose which can combine into starch or cellulose Still other G3P's form sucrose and some of the sugar is broken down by cellular respiration using oxygen in the plants own mitochondria generating ATP's that can power other work of the plant Excess oxygen diffuses out of the leaf through the pores while more carbon dioxide enters With three simple ingredients; carbon dioxide, water and light plants produce sugar and oxygen by photosynthesis powering plant metabolism and ultimately providing your fuel as well
The Calvin cycle takes place outside the thylakoids in the stroma the thick fluid of the chloroplast At the beginning of the cycle carbon dioxide molecule combine with molecules called RUBP The resulting molecules go through a series of reactions powered by ATP and NADPH from the light reactions Sugar molecules known as G3P's are produced Most of the G3P's are rearranged back into RUBP's that will begin the Calvin cycle again But the important product of photosynthesis is the remaining G3P sugar Some G3P's are used to build glucose which can combine into starch or cellulose Still other G3P's form sucrose and some of the sugar is broken down by cellular respiration using oxygen in the plants own mitochondria generating ATP's that can power other work of the plant Excess oxygen diffuses out of the leaf through the pores while more carbon dioxide enters With three simple ingredients; carbon dioxide, water and light plants produce sugar and oxygen by photosynthesis powering plant metabolism and ultimately providing your fuel as well