3rd step of linear electron flow in the light reactions of chemiosmosis PSII

3rd step of linear electron flow in the light

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3rd step of linear electron flow in the light reactions of chemiosmosis PSII then has higher e- affinity, so when an enzyme splits water into 2H+, 1/2O2, and 2e-, the e- replace other e-.
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11/22/2019 Chapter 10: Photosynthesis Flashcards | Quizlet 8/15 4th step of linear electron flow in the light reactions of chemiosmosis e- travels by ETC to PSI, loosing energy on the way. This energy changes the shape of cytc, and e- actively transport H+ through cytc accross membrane. this creates H+ gradient for ATP syn 5th step of linear electron flow in the light reactions of chemiosmosis photons hit PSI and same process as PSII occurs, but at 700nm and e- is passed from PC, not H20. Then same e- is passed from Fd to NADP+ reductase by redox rxns. This doesn't create an H+ gradient so no ATP is made from it. NADP+ reductase catalyzes e- transfer to NADPH, which has higher energy level than H20 for calvin cycle. each turn of the calvin cycle fixes______ molecules of CO2, so it takes _____ turns of the calvin cycle to net one G3P. 1, 3 explain the important events that occur in the carbon fixation stage of the calvin cycle: 1 CO2 is attached to one 5-carbond sugar RuBP. this is catalyzed by RuBisCo. This 6-carbon, 2 phosphate intermediate immediately splits in half to form two 3- phosphoglycerates. Rubsico is the enzyme responsible for carbon fixation in the
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11/22/2019 Chapter 10: Photosynthesis Flashcards | Quizlet 9/15 calvin cycle and possibly the most abundant protein on earth in phase 2: reduction stage... reducing power of NADPH donates e- to the low energy acid 1,3 bisphosphoglycerate to form the 3- carbon sugar G3P/PGAL how many turns of the calvin cycle for one net G3P 3 the production of one net G3P requires ___ carbons distributed in ___ RuBPs 15 carbons in 3 RuBPs After fixing __ CO2's using the enzyme ___, the calvin cycle forms ___ G3Ps with a total of __ carbons. At this point the net gain of carbons is ___, or one net G3P molecule. After fixing 3 CO2's using the enzyme rubisco, the calvin cycle forms 6 G3Ps with a total of 18 carbons. At this point the net gain of carbons is 3, or one net G3P molecule. why does it take 3 turns of the calvin cycle to produce only 5 of the 6 G3Ps produced from 3 CO2's stay in the calvin cycle & are rearranged to become 3 RuBPs
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11/22/2019 Chapter 10: Photosynthesis Flashcards | Quizlet 10/15 Upgrade to remove ads Only $3/month 2019 DODGE CHALLENGER PURCHASE AND GET $10 PER HORSEPOWER CASH ALLOWANCE 1 BUILD & PRICE SEARCH INVENTORY Legal one net G3P? needed in the next steps. explain how the regeneration of RuBP is accomplished. 5G3Ps are turned into 3RuBP using the energy of the dephosphorylation of 3ATPs. (Anabolic rxn to build larger, higher energy MCs out of smaller ones.) what are C3 plants first product plants that their first organic product of carbon fixation= the 3 carbon compound 3- phosphoglycerate what happens to a plant when photorespiration occurs
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