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28 Cards in this Set
- Front
- Back
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Transpiration
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A natural process by which plants lose water via evaporation through their leaves
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Stages of Photosynthesis
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-light dependent reactions
-light independent reactions (Calvin Cycle) |
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Outputs of Light Independent Reactions
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-sugar
-ADP -NADP+ |
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Inputs of Light Independent Reactions
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-NADPH
-ATP -carbon dioxide |
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Outputs of Light Dependent Reactions
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-oxygen
-NADPH -ATP |
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Inputs of Light Dependent Reactions
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-water
-light |
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Mesophyll Tissue
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Interior tissue of a leaf
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Mesophyll Cells
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Cells that contain many chloroplasts and host the majority of photosynthesis
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Heterotroph
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Organism that must consume other organisms to obtain nourishment; "consumers"
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Light-Dependent Reactions
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Occur in thylakoid membrane; inputs are water and light; products are ATP, NADPH, and oxygen; oxygen produced in the light reactions comes from H20, not CO2
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Photosystem I
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Main chlorophyll of photosystem I absorbs light with a wavelength of 700 nm
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Photosystem II
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Main chlorophyll of photosystem II absorbs light with a wavelength of 680 nm
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Chlorophyll
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Photosynthetic pigment
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Photophosphorylation
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Process by which ATP is produced during the light-dependent reactions of photosynthesis
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Photolysis
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Process by which water is broken up by an enzyme into hydrogen ions and oxygen atoms; occurs during light-dependent reactions of photosynthesis
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Photorespiration
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Process by which oxygen competes with carbon dioxide and attaches to RuBP; plants that experience it have a lowered capacity for growth
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Photosystem
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Cluster of light-trapping pigments involved in the process of photosynthesis; vary tremendously in their organization
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Pigment
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Molecule that absorbs light of a particular wavelength; Ex. chlorophyll, carotenoids, phycobilins
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Rubisco
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Enzyme that catalyzes the 1st step of the Calvin Cycle in C3 plants
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Photosynthesis
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Process by which plants generate energy from light and inorganic raw materials; occurs in chloroplasts
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Regions of a Chloroplast
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-inner and outer portion
-inner fluid portion called stroma is surrounded by 2 outer membranes |
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Stroma
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Inner fluid portion of a chloroplast that plays host to light-independent reactions
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Thylakoid Membrane System
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Inner membrane that winds through stroma of a chloroplast; site of light-dependent reactions
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Autotroph
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Organism that is self-nourishing and obtains energy and carbon without ingesting other organisms; Ex. plants and algae; "producers"
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Chlorophyll a
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Major pigment of photosynthesis
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Chlorophyll b
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Accessory pigment of photosynthesis
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Grana
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Flattened channels and disks arranged in stacks found in the thylakoid membrane
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Bundle Sheath Cells
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Tightly wrapped around the veins of a leaf; site for Calvin Cycle in C4 plants
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