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35 Cards in this Set
- Front
- Back
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Photosynthesis is a __________ process
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Endergonic. Positive delta G
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The "Light-dependent" reactions of photosynthesis are most closely associated with the ________________
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Thylakoids
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Photosystem II of photosynthesis is closely associated with ___________
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Release of oxygen
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The portion electromagnetic spectrum with the LEAST amount of energy is ____________ a.) visible light b.) infrared light c.) ultraviolet light d.) gamma rays |
Infrared light (Gamma rays are the highest energy)
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In plants expressing only "chlorophyll a", photosynthesis is generally highest when the plants are exposed to __________ light
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Blue-violet
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In photosynthesis, the light-harvesting complex involving multiple chlorophyll molecules is referred to as a(n) ________________
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Antenna System
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In an antenna system, photon energy ultimately passes to a chlorophyll molecule in ___________
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a reaction center
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Electrons lost from chlorophyll in photosystem II are replaced by electrons from ___________
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H20 |
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In the "light-dependent" reactions of photosynthesis, photon energy is stored as _________
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Electrons in NADPH and ATP
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In the "Light-dependent" reactions of photosynthesis, energy from electrons is used to move protons (H+) into _________
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thylakoid lumens (Cellular respiration protons go to intermembrane space in mitochondrio) |
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Non-cyclic electron transport involves __________
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Passing electrons to NADP+, release of oxygen, and syntehsis of ATP
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Cyclic electron transport involves __________
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Synthesis of ATP
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The Calvin cycle most directly involves synthesis of ____________
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Glyceraldehyde 3-phosphate
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The Calvin cycle occurs in the __________ of the chloroplast
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Stroma
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In the Calvin cycle, CO2 is ____________ |
Reduced
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The process of binding of CO2 to the 5-carbon ribulose-1,5-biphosphate is most specifically called _____________
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Carbon fixation
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The key initial enzyme for "Fixing" CO2 is _________
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Rubisco
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Glyceraldehyde 3-phosphate can be used to synthesize glucose in a process called _____________
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gluconeogenesis (neo=new, genesis=create)
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_______________ is required to synthesize amino acids from Krebs cycle intermediates |
Nitrogen
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"Chlorophyll a" best absorbs energy from the __________ and ____________ wavelengths of light
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Long (red) and Short (blue-violet)
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Light can behave as particles called __________ |
Photons
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__________ is the general name for a molecule like chlorophyll that absorbs specific wavelengths of light
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Pigment
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In a photosystem, photon energy from light-harvesting chlorophyll molecules is passed to a chlorophyll molecule in the __________
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Reaction center
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The process in the "Light-dependent" reactions that produces additional ATP, but not additional NADPH, is _______________
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cyclic electron cycle
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The Calvin cycle occurs in the ______________ of the chloroplast
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Stroma
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The 3-carbon sugar produced in the Calvin cycle is ____________________
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glyceraldehyde 3-phosphate
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The key enzyme in the Calving cycle is ____________
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rubisco
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The enzyme most directly involved in ATP synthesis is _______________
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ATP synthase
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In the "Light-dependent" reactions of photosynthesis, electron energy is used to move H+ into the _________________
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Thylakoid Lumen
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Why is oxygen produced during photosynthesis? Be as specific as possible regarding the mechanism
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The reaction center in photosystem II loses electrons. It takes electrons from H20 making O2
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Photosynthesis involves energy transformation. Please explain
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Photosynthesis transforms light energy to chemical energy in electrons
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Name 3 molecules produced during the light-dependent reactions of photosynthesis and state which molecule(s) is/are needed to run the Calvin cycle
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3 molecules produced: ATP, NADPH, and Oxygen -ATP and NADPH are needed in the Calvin Cycle |
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Match the numbers of the following statements with the correct cycle. (Cyclic/Noncyclic). 1.) Generates a H+ gradient 2.) Produces ATP 3.) Stores electrons in NADPH 4.) Produces Oxygen 5.) Requires Light |
Cyclic Electron Transport: 1 (Generates a H+ gradient), 2 (Produces ATP), and 5 (Requires light) Noncyclic Electron Transport: 1,2,3 (Stores electrons in NADPH),4 (Produces Oxygen),5 |
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Place the Number of the following statements in the correct order from first to last 1.) Gluconeogenesis 2.) Carbon Fixation 3.) Glucose 4.) Glyceraldehyde 3-phosphate 5.) Starch |
2.) Carbon Fixation 4.) Glyceraldehyde 3-phosphate 1.) Gluconeogenesis 3.) Glucose 5.) Starch |
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Give one specific reason why plants have to obtain nitrogen-containing substances from the soil
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Plants need nitrogen to synthesize nucleotides |
