| noncyclic photophosphorylation | <biochemistry> Process by which light energy absorbed by photosystems I and II in chloroplasts is used to generate ATP (and also NADPH). Involves photolysis of water by photosystem II, passage of electrons along the photosynthetic electron transport chain with concomitant phosphorylation of ADP and reduction of NADP using energy derived from photosystem I. (18 Nov 1997) |
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| photophosphorylation | <plant biology> The synthesis of ATP that takes place during photosynthesis. In noncyclic photophosphorylation the photolysis of water produces electrons that generate a proton motive force which is used to produce ATP, the electrons finally being used to reduce NADP to NADPH. When the cellular ratio of reduced to nonreduced NADP is high, cyclic photophosphorylation occurs and the electrons pass down an electron transport system and generate additional ATP, but no NADPH. (31 Dec 1997) |
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| cyclic photophosphorylation | Process by which light energy absorbed by photosystem I in the chloroplast can be used to generate ATP without concomitant reduction of NADP or other electron acceptors. Energised electrons are passed from PS I to ferredoxin and thence along a chain of electron carriers and back to the reaction centre of PS I, generating ATP en route. (18 Nov 1997) |
제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
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제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
|---|