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34 Cards in this Set
- Front
- Back
Photosynthesis
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6 Carbon Dioxide+ 6 Water --> sunlight --> glucose + 6 oxygen
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Cuticle (produced by and function of)
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Upper epidermis to protect leaf from water loss
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Palisade Parenchyma
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Site containing chloroplasts
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Stroma
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Fluid-filled region of chloroplast
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Grana
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Stacks of thylakoids
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Thylakoids
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Contain chlorophyll
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Spongy Parenchyma
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Allows for diffusion of gases within the leaf
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Vascular Bundles include
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Xylem and Phloem
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Location of stomates
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Lower epidermis
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Stomates
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Allow for gas exchange and transpiration
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Guard cells
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Control opening and closing of stomates
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Light Reactions
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Photosystems
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Dark Reaction
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Calvin Cycle
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Photons
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Light energy units
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What is produced by light reactions?
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-Energy in form of ATP
-Electron carriers (NADPH) |
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3 Important pigments found in the antenna complexes (AKA the antenna pigments)
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Alpha chlorophyll, beta chlorophyll, and carotenoids
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Reaction Center
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The only molecule capable of transforming light energy to chemical energy
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Photosystem I
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P700
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Photosystem II
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P680
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Phosphorylation
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When light energy is used to make ATP
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Photolysis
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The process through which water is split into oxygen, hydrogen ions and electrons
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Role of NADP in Noncyclic Phosphorylation
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Final Electron Acceptor (becomes NADPH)
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Where do the light reactions occur?
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In the Thylakoid lumen
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3 Points about Noncyclic Phosphorylation
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-P680 captures light and passes excited electrons down an electron transport chain to produce ATP
-P700 captures light and passes excited electrons down an electron transport chain to produce NADPH -A molecule of water is split releasing electrons, hydrogen ions and oxygen |
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3 Points about Cyclic Phosphorylation
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-P700 captures light and passes excited electrons down an electron transport chain to produce ATP
-NADPH is not produced -Water is not split |
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Carbon Fixation/Calvin Cycle
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The carbon dioxide from the air is converted into carbohydrates (glucose usually)
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Location of the Carbon Fixation reactions
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Stroma of the leaf
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RuBP
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The 5C molecule that carbon dioxide combines with to make an unstable 6C
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C3 Pathway
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Normal Calvin Cycle/Carbon fixation
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C4 Pathway
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Works really well in hot, dry climates
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3 Important Facts About Dark Reaction
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-Calvin cycle occurs in stroma of chloroplasts
-ATP and NADPH from light reactions are necessary for carbon fixation -CO2 is fixed to form glucose |
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More Info on C4 Pathway
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See Alex or p.76 :)
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More Info on CAM Photosynthesis
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See Alex or p. 76 :)
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Photorespiration
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The pathway that leads to the fixation of oxygen (Making CO2 fixation less efficient)
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