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AP Bio-Ch. 7: Photosynthesis Flashcards

McGraw Hill 8th Edition by Sylvia S. Mader. 25 Vocab

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107968355Absorption spectrumThe various portions of visible light that pigments are capable of absorbing107968355
107968356Action spectrumThe data of the measure of the rate of photosynthesis at each wavelength of light that are plotted on a graph results in ght record of the action spectrum of photosynthesis in plants.107968356
107968357ATP synthaseEnzyme that is part of an ATP synthase complex and functions in the production of ATP in chloroplasts and mitochondria107968357
107968358C3 plantPlant that fixes carbon dioxide via the Calvin cycle; the first stable product of C3 photosynthesis is a 3-carbon compound.107968358
107968359C4 plantPlant that fixes carbon dioxide to produce a c4 molecule that releases carbon dioxide to the Calvin cycle107968359
107968360Calvin cycle reactionPortion of photosynthesis that takes place in the stroma of chloroplasts and can occur in the dark; it uses the products of the light reactions to reduce CO2 to a carbohydrate107968360
107968361CAMPlant that fixes carbon dioxide at night to produce a C4 molecule that releases carbon dioxide to the Calvin cycle during the day; CAM stands for crassulacean-acid metabolism107968361
107968362Carbon dioxide fixationPhotosynthetic reaction in which carbon dioxide is attached to an organic compound.107968362
107968363CarotenoidYellow or orange pigment that serves as an accessory to chlorophyll in photosynthesis107968363
107968364ChemiosmosisAbility of certain membranes to use a hydrogen ion gradient to drive ATP formation.107968364
107968365ChlorophyllGreen pigment that absorbs solar energy and is important in algal and plant photosynthesis; occurs as chlorophyll a and chlorophyll b.107968365
107968366ChloroplastMembrane-bounded organelle in algae and plants with chlorophyll-containing membranous thylakoids; where photosynthesis takes place107968366
107968367Cyclic electron pathwayPortion of the light reaction that involves only photysystem I and generates ATP107968367
107968368Electron transport systemPassage of electrons along a series of membrane-bounded electron carrier molecules from a high to lower energy level; the energy released is used for the synthesis of ATP.107968368
107968369GranumStack of chlorophyll-containing thylakoids in a chloroplast107968369
107968370Light reactionPortion of photosynthesis that captures solar energy and takes place in thylakoid membranes of chloroplasts; produces ATP and NADPH.107968370
107968371Noncycylic electron pathwayPortion of the light reactions of photosynthesis that involves both photosystem and I and photosystem II. It generates both ATP and NADPH107968371
107968372PhotorespirationSeries of reaction that occurs in plants when carbon dioxide levels are depleted but oxygen continues to accumulate and the enzyme RuBP carboxylase fixes oxygen instead of carbon dioxide107968372
107968373PhotosynthesisProcess occurring usually within chloroplast whereby chlorophyll-containing organelles trap solar energy to reduce carbon dioxide to carbohydrate.107968373
107968374PhotoysystemPhotosynthetic unit where solar energy is absorbed and high-energy electrons are generated; contains a pigment complex an electron acceptor; occurs as PS I and PS II107968374
107968375RuBP carboxylaseAn enzyme that starts the Calvin cycle reaction by catalyzing attachment of the carbon atom form CO2 to RuBP107968375
107968376StomataSmall openings between the between two guard cells on the underside of leaf epidermis through which gases pass.107968376
107968377StromaFluid within a chloroplast that contains enzymes involved in the synthesis of carbohydrates during photosynthesis107968377
107968378ThylakoidFlattened sac within a granum whose membrane contains chlorophyll and where the light reactions of photosynthesis occur107968378
107968379Visible lightPortion of the electromagnetic spectrum that is visible to the human eye107968379

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