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16 Cards in this Set
- Front
- Back
Photosynthesis
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The process by which plants, autotrophic protist, and some bacteria use light energy to make sugar and other organic food molecules from carbon dioxide & water releasing O2 as a bi-product.
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Chloroplast
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An organelle found in plants and photosynthetic that absorbs sunlight and uses it to drive the synthesis of organic molecules (sugar) from CO2 & H2O.
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Chlorophyll
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A green pigment located within the chloroplasts of plants, algae, and certain prokaryotes. Chlorophyll a can participate in the light reactions, which converts solar energy to chemical energy.
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Mesophyll
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The green tissue of a leaf; a leaf's ground tissue system; the main site of photosynthesis. (Chloroplasts are concentrated in the cells of the mesophyll).
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Stomata
(singular stoma, "mouth") |
Are tiny pores surrounded by guard cells in the epidermis of a leaf. When they are open, CO2 enters and O2 exits the leaf.
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Stroma
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It's a thick fluid within the chloroplast that surrounds the thykaloid membrane and is involved in the synthesis of organic molecules from CO2 & H2O. Sugars are made in the stroma by the enzymes of the calvin cycle
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Thylakoids
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Flattened membranous sacks inside a chloroplast, that contained the thylakoid space.
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Thylakoid Membrane
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contain chlorophyll and the molecular complexes of the light reactions of photosynthesis
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Granum
(plural, Grana) |
A stack of membrane-bound thykaloids in a chloroplast. Grana are the sites where light energy is trapped by chlorophyll and converted to chemical energy during the light reactions of "PS".
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Light Reaction
(1st stage of PS) |
The steps in which solar energy is absorbed and converted to chemical energy in the form of ATP and NADPH. The light reactions power the sugar-producing Calving cycle but produces no sugar.
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Calvin Cycle
(2nd stage of SP) |
A cyclic series of chemical reactions that occur in the stoma of a chloroplast, using the carbon in CO2 and the ATP and NADPH produced by the light reaction to produce the energy-rich sugar molecule called G3P.
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NADPH
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Is an electron acceptor that temporarily stores energized electrons produced during the light reaction of "PS".
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Visible Light
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The radiation our eyes see as different colors–is only a small fraction of the spectrum. It consists of wavelengths of about 380nm to about 750nm.
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Photon
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A fixed quantity of light energy. The shorter the wavelength of flight, the greater the energy of a photon
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Pigments
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Absorbs photons and pass the energy from molecule to molecule until it reaches the reaction center.
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Spectrum of Electromagnetic Radiation
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Is the full ranged of electromagnetic wavelengths from the very short gamma rays to the very long wavelength radio waves.
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