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AP Biology 8 Photosynthesis Flashcards

Photosynthesis

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13523433567photosynthesis (definition)process of harnessing light energy to build carbohydrates in autotrophs (ex. plants, cyanobacteria)0
13523433571photosynthesis (equation)6 CO2 + 6 H2O + light energy --> C6H12O6 + 6 O21
13523433572autotrophorganism that can capture energy from sunlight or chemicals and use it to produce its own food (producer)2
13523433573heterotrophorganism that cannot produce its own food and therefore obtains it by consuming other living things (consumer)3
13523433574anabolicWhat kind of a process is photosynthesis?4
13523433575catabolicWhat kind of a process is cellular respiration?5
13523433576light-dependent reactions1st step of photosynthesis during which light energy is captured and used to synthesize ATP and NADPH6
13523433577light-independent reactions2nd step of photosynthesis during which CO2 is incorporated into a sugar molecule using ATP and NADPH produced during the first step7
13523433578thylakoid membranes of chloroplastslocation of light-dependent reactions8
13523433579stroma of chloroplastslocation of light-independent reactions9
13523433580G3Pcarbon product of the light-independent reactions10
13523433581pigmentssubstances that can absorb, reflect, or transmit light11
13523433582absorption spectrumgraph of a pigment's ability to absorb various wavelengths of light12
13523433583violet, blue and redWhich wavelengths of the visible light spectrum do chlorophylls absorb?13
13523433584green and yellowWhich wavelengths of the visible light spectrum do chlorophylls reflect?14
13523433568carotenoidsaccessory pigments in chloroplasts that broaden the spectrum of colors used in photosynthesis15
13523433585photosystemsphotosynthetic pigments embedded with protein complexes in the thylakoid membrane16
13523433586watersplitting this molecule replaces electrons which are excited and passed to primary electron acceptor in PSII17
13523433587O2released as a byproduct of splitting water18
13523433588proton-motive forcecreated by pumping hydrogen ions from stroma to thylakoid space during electron transport chain between PS II and PS I19
13523433589ATP synthaseenzyme that synthesies ATP by utilizing a proton-motive force20
13523433569Calvin cycle, dark reactions, and carbon fixationother names for light independent reactions21
13523433591reductionstep in Calvin cycle that produces sugar G3P22
13523433592carbon dioxidemolecule reduced in Calvin cycle to produce sugar23
13523433570thylakoidsflattened membranous sacs inside chloroplasts that contain systems which convert light energy to chemical energy24
13523433593absorbedenergy is ____________ in photosynthesis25
13523433594releasedenergy is _____________ in cellular respiration26
13523433595glucose and oxygenreactants of cellular respiration27
13523433596carbon dioxide and waterreactants of photosynthesis28
13523433597glucosesource of electrons used in ETC of cellular respiration29
13523433598intermembrane spacesite of proton gradient built up in cellular respiration30
13523433599thylakoid spacesite of proton gradient built up in photosynthesis31
13523433600NAD+ and FADhigh energy electron carrier(s) before reduction in cellular respiration (after they drop off electrons at ETC)32
13523433601NADH and FADH2high energy electron carrier(s) after reduction in cellular respiration (after they pick up electrons from Kreb's cycle)33
13523433602NADP+high energy electron carrier(s ) before reduction in photosynthesis (after they drop off electrons for Calvin cycle)34
13523433603NADPHhigh energy electron carrier(s ) after reduction in photosynthesis (after they pick up electrons from ETC)35
13523433604ATPenergy product(s) from ETC in cellular respiration36
13523433605ATP and NADPHenergy product(s) from ETC in photosynthesis37
13523433606glucose, NADH and FADH2reactant(s) oxidized in cellular respiration38
13523433607H2Oreactant(s) oxidized in photosynthesis (source of electrons)39
13523433609stomatapore-like openings on underside of leaves that allow gases (CO2 and O2) and water to diffuse in and out40

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