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25 Cards in this Set
- Front
- Back
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Photosynthesis
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process in which chloroplasts capture light energy from the sun and convert it to chemical energy
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Autotrophic
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sustain themselves without eating anything derived from other organisms
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Heterotrophic
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obtain organic material from other organisms
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What does structural organization of cells allow?
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chemical reactions of photosynthesis
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The chemical change of photosynthesis is the reverse of ________
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cellular resperation
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Cholorphyll
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green pigment inside of chloroplasts
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Mesophyll
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interior tissue of the leaf where chloroplasts are found
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Stomata
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micropores in the leaf where CO2 enters and oxygen exits
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Thylakoids
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connected sacs in the chloroplast
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Stroma
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a dense interior fluid contained in chloroplasts
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Where do light reactions take place?
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thylakoids
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Where does the Calvin Cycle take place?
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in the stroma
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What do the light reactions of photosynthesis accomplish?
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-split H20
-release 02 -reduce NADP+ to NADPH -Generate ATP from ADP by phosphorylation |
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What does the Calvin Cycle accomplish?
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-forms sugar from CO2
-begins with carbon fixation |
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Electromagnetic Spectrum
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the entire range of electromagnetic energy
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Pigments
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substances that absorb visible light
Different pigments absorb different wavelengths |
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What is the relationship between the photon and its wavelength?
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They are inversely proportional
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Absorption Spectrum
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a graph plotting a pigments light absorption vs. the wavelength
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Action Spectrum
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profiles the relative effectiveness of different wavelengths of radiation in driving a process
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What two things does a photo system consist of?
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reaction center complex and light harvesting complexes
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Linear electron flow
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the primary pathways uses both photosystems and produces both ATP and NADPH using light energy
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cyclic electron flow
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Uses only photosystem I and produces ATP but not NADPH
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primary electron acceptor
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accepts excited electrons and is reduced as a result
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Chemiosis of Chloroplasts
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protons pumped into thylakoid space, drive ATP synthesis when diffuse back into stroma
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Chemiosis of Mitochondria
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protons pumped into intermembrane space, drive ATP synthesis when diffuse back into the mitochondrial matrix
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