Plants and some other kinds of organisms are able to usage light energy from the sunlight to produce their own food. Autotrophs – make their very own food Heterotrophs – acquire energy from the foods they consume or absorb. All organisms must release the power in sugars and also other compounds. Go to Section:AdenineGo to Section:ATPRibose3 Phosphate groupsATPADP Section 8-1Energy Energy Adenosine diphosphate (ADP) + PhosphatePartially charged batteryGo to Section:Adenosine triphosphate (ATP) Fully charged batteryATPADP Section 8-1Energy Energy Adenosine diphosphate (ADP) + PhosphatePartially charged batteryGo to Section:Adenosine triphosphate (ATP) Fully charged batteryIf ATP is such a helpful source of energy, why do a lot of cells have actually just sufficient ATP to last them for a couple of secs of activity? o ATP is a good molecule for delivering energy; it is not a great molecule for storing large quantities of power over the long term. o A single molecule of glucose stores more than 90 times the chemical energy of a molecule of ATP.o It is more reliable for cells to save just a tiny supply of ATP on hand. o Cells regenerate ATP from ADP as required by using the power in glucose. Go to Section:Light and Pigments In enhancement to water and carbon dioxide, photosynthesis requires light and also chlorophyll, a molecule in chloroplasts. Sunlight is a mixture of various wavelengths of light.Plants gather the sun’s power through light-absorbing molecules called pigments. Chlorophyll is the plants’ principle pigment (chlorophyll a and chlorophyll b). Chlorophyll absorbs light in the blue-violet and also red regions of the visible spectrum.


You are watching: Section 8-3 the reactions of photosynthesis


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Eco-friendly light is reflected by leaves.When chlorophyll absorbs light, the energy from the sun is transferred to the electrons of the chlorophyll molecule. Go to Section:Figure 8-5 Chlorophyll Light Absorption Section 8-2Absorption of Light by Chlorophyll a and also Chlorophyll bChlorophyll b Chlorophyll aVGo to Section:BGYORPhotosynthesis: Reactants and also Products Section 8-2Light EnergyChloroplastCO2 + H2OGo to Section:Sugars + O2Go to Section:Go to Section:Figure 8-7 Photosynthesis: An Overview Section 8-3ChloroplastLightH2OCO2 ChloroplastNADP+ ADP + P LightDependent ReactionsCalvin Cycle ATPNADPHO2 Go to Section:SugarsFigure 8-10 Light-Dependent ReactionsLight-Dependent ReactionsSection 8-3Photodevice IIHydrogen Ion MovementChloroplastATP synthase Inner Thylakoid SpaceThylakoid MembraneStroma Electron Transport ChainGo to Section:Photosystem IATP FormationFigure 8-11 Calvin Cycle Section 8-3Calvin CycleCO2 Enters the Cycle Energy InputChloropIast 5-Carbon Molecules Regenerated 6-Carbon Sugar Produced Sugars and also other compounds Go to Section:Factors that affect the price of photosynthesis: •Availcapability of water •Light intensity •TemperatureGo to Section:Concept Map Section 8-3Photosynthesis includesH2OLightdependent reactionsCalvin cycleusetake area inEnergy from sunlightThylakoid membranesto produceATPNADPHGo to Section:O2takes location inStromaCO2usesATPNADPHofto produceChloroplastsHigh-energy sugars