Stack #34911
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| Where does the energy come from? | Almost all of the energy comes from the sun.
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| Autotroph | An organism that produces its own nutrients from inorganic substances or from the environment (ex. sunlight) instead of consuming other organisms.
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| Photosynthesis | The process by which plants, algae, and some other bacteria use sunlight, carbon dioxide, and water to produce carbohydrates and oxygen.
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| Heterotroph | an organism that obtains organic food molecules by eating other organisms or their byproducts and that cannot synthesize organic compounds from inorganic materials
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| Biochemical Pathway | a series of chemical reactions that convert one biological material into another (the product of one reaction is consumed in the next reaction)
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| Cellular respiration | Oxygen and some of the organic compounds produced by photosynthesis are used by cells in a process calles cellular respiration.
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| Photosynthesis can be devided into how many stages? Name them. | 2 stages: Light reactions & Calvin Cycle
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| Light Reactions | Light energy (absorbed from the sun) is converted to chemical energy, which is temporarily stored in ATP and the energy carrier molecule NADPH
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| Calvin Cycle | Organic compounds are formed using CO2 and the chemiacl energy stored in ATP and NADPH
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| Give the equation that summarizes the process of photosynthesis. | 6CO2+6H2O(light energy)=C6H12O6+6O2
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| The light reactions begin with the absorbtion of light in | chloroplasts
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| Chloroplast has .... membranes? | 2
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| thylakoids | a membrane system found within chloroplasts that contains the components for photosynthesis
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| grana | stacks of thylakoids in a chloroplast
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| visible spectrum | the portion of the electromagnetic spectrum that includes all of the wavelengths that are visible to the human eye
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| pigment | compound that absorbs light
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| chlorophyll | a green pigment that is present in most plant cells, that gives plants their characteristic green color, and that reacts with sunlight, carbon dioxide, and water to form carbohydrates
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| The 2 most common types of chlorophyll are | chlorophyll a and chlorophyll b
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| Chlorophyl a absorbs less .... light and more .... light than chlorophyl b. | less blue light and more red light
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| whch of the chlorophylls are directly involved in light reactions of photosynthesis? | Chlorophyll a
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| Carotenoid | a class of pigments that are present mostly in plants and that aid in photosynthesis
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| stroma | in plants, the solution that surrounds the thylakoids in a chloroplast
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Created by:
anamak