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GWHS AP Biology - Chp 10: Photosynthesis Flashcards

Photosynthesis

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7556835941anabolicWhat kind of a process is photosynthesis?0
7556835942catabolicWhat kind of a process is cellular respiration?1
7556835943light (dependent) reactions1st step of photosynthesis during which light energy is captured and used to synthesize ATP and NADPH2
7556835944Calvin Cycle (light-independent reactions)2nd step of photosynthesis during which CO2 is incorporated into a sugar molecule using ATP and NADPH produced during the first step3
7556835945thylakoid membranes of chloroplastslocation of light reactions4
7556835946stroma of chloroplastslocation of Calvin Cycle light-independent reactions5
7556835947G3Pcarbon product of the Calvin Cycle (light-independent reactions)6
7556835948absorption spectrumgraph of a pigment's ability to absorb various wavelengths of light7
7556835949action spectrumgraph of a plant's photosynthesis rate at different wavelengths of light8
7556835950carotenoidsaccessory pigments in chloroplasts that broaden the spectrum of colors used in photosynthesis (absorb green/blue but reflect red/yellow/orange)9
7556835951photosystems(#6) photosynthetic pigments embedded with protein complexes in the thylakoid membrane10
7556835952light harvesting complex(3) proteins associated with pigment molecules that capture light energy and transfers it to center of a photosystem11
7556835953photosystem II (PS II)1st of two light harvesting units in thylakoid membrane that passes excited electrons to reaction-center chlorophyll12
7556835954primary electron acceptor(2) electrons from the reaction-center in thylakoid membranes are transferred to this molecule13
7556835955watersplitting this molecule replaces electrons which are excited and passed to primary electron acceptor in PSII14
7556835956O2released as a byproduct of splitting water15
7556835957photosystem I (PS I)2nd of two light-capturing units in thylakoid membranes that replaces its electrons by those from the 1st complex and results in production of NADPH16
7556835958proton-motive forcecreated by pumping hydrogen ions from stroma to thylakoid space during electron transport chain between PS II and PS I17
7556835959ATP synthaseenzyme that synthesies ATP by utilizing a proton-motive force18
7556835960Calvin cycle, dark reactions, and carbon fixationother names for light independent reactions19
75568359613 steps of light independent reaction1. carbon fixation 2. reduction 3. regeneration of RuBP20
7556835962carbon dioxidemolecule reduced in Calvin cycle to produce sugar21
7556835963thylakoids(C) flattened membranous sacs inside chloroplasts that contain systems which convert light energy to chemical energy22
7556835964glucose, NADH and FADH2reactant(s) oxidized in cellular respiration23
7556835965H2Oreactant(s) oxidized in photosynthesis (source of electrons)24
7556835966rubiscoenzyme that catalyzes first step of Calvin cycle by adding CO2 to ribulose bisphosphate (RuBP)25
7556835967stomatapore-like openings on underside of leaves that allow gases (CO2 and O2) and water to diffuse in and out26

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