ch10 - Photosynthesis Chapter 10 Objectives Compare the...

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Photosynthesis Chapter 10 Objectives Compare the overall reaction of photosynthesis with the overall reaction for respiration Describe where the processes of photosynthesis occur Describe the basic processes involved in photosynthesis: water splitting to obtain electrons, redox reactions of the electron transport chains, electron and energy shuttling by means of ATP and NADPH, and the coupling of the light-dependent reactions and the Calvin cycle Explain how pigments capture light and excite electrons Describe the structural and functional differences between photosystem I and photosystem II, and cyclic and noncyclic photophosphorylation Outline the steps in the cyclic fixation of carbon in the Calvin cycle and where these occur Contrast the C 4 and CAM photosynthetic systems with the simpler C 3 system, and how they are adaptions to hot, dry climates Introduction Overall equation is reversal of cellular respiration 6CO 2 +12H 2 O+energy--->C 6 H 12 O 6 +6O 2 +6H 2 O Increasingly probing studies provided knowledge about how photosynthesis works van Helmont-developed early ideas about where plants obtain materials for growth showed that soil not sufficient concluded that water important Priestly-showed that plants restore “bad” air Ingenhousz-plants only restore air when exposed to light Autotrophs are Producers _Autotroph_-means self-feeding applies to any organism that makes own food without eating, decomposing or absorbing other organisms or organic molecules Photosynthetic autotrophs include plants, algae and photosynthetic bacteria Site of Photosynthesis Photosynthesis occurs in chloroplasts in all photosynthetic organisms except monerans Leaves (specifically, mesophyll cells) are primary site of photosynthesis Light-absorbing pigment is __________ located in protein complexes in internal membranes of chloroplasts Sugars assembled in stroma
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This note was uploaded on 04/07/2008 for the course BSV 2010c taught by Professor Janewaterman,pamelathomas during the Spring '07 term at University of Central Florida.

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ch10 - Photosynthesis Chapter 10 Objectives Compare the...

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