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GO:0019684 photosynthesis, light reactionThe light reactions of photosynthesis, which take place in photosystems II and I. Light energy is harvested and used to power the transfer of electrons among a series of electron donors and acceptors. The final electron acceptor is NADP+, which is reduced to NADPH. NADPH generated from light reactions is used in sugar synthesis in dark reactions. Light reactions also generate a proton motive force across the thylakoid membrane, and the proton gradient is used to synthesize ATP. There are two chemical reactions involved in the light reactions: water oxidation in photosystem II, and NADP reduction in photosystem I.
Term Information
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| Type | Synonym |
| exact | photolysis |
| Database | ID |
| INTERPRO | IPR006241 |
| INTERPRO | IPR002362 |
| INTERPRO | IPR002361 |
| Wikipedia | Photolysis#Photolysis_in_photosynthesis |
| MetaCyc | PWY-101 |
| INTERPRO | IPR006217 |
| INTERPRO | IPR003158 |
| INTERPRO | IPR005652 |
| INTERPRO | IPR000484 |
| INTERPRO | IPR007826 |
| INTERPRO | IPR000932 |
| INTERPRO | IPR006216 |
| INTERPRO | IPR014747 |
| INTERPRO | IPR005871 |
| INTERPRO | IPR005781 |
| INTERPRO | IPR005867 |
| INTERPRO | IPR000066 |
| INTERPRO | IPR015810 |
| INTERPRO | IPR005868 |
| INTERPRO | IPR005869 |
All GO terms displayed in this graph can be clicked to display term definitions and child (descendent) terms.
All GO terms displayed in this chart can be right-clicked to display term definitions and child (descendent) terms.
| GO:0008150 biological_process | ||||||
![]() | GO:0008152 metabolic process | |||||
![]() | ![]() | GO:0009987 cellular process | ||||
![]() | ![]() | ![]() | GO:0044237 cellular metabolic process | |||
![]() | ![]() | ![]() | ![]() | GO:0015979 photosynthesis | ||
![]() | ![]() | ![]() | ![]() | ![]() | GO:0006091 generation of precursor metabolites and energy | |
![]() | ![]() | ![]() | ![]() | ![]() | ![]() | GO:0019684 photosynthesis, light reaction |
| Code | Relationship |
![]() | part of |
![]() | is a |
![]() | regulates |
![]() | +ve regulates |
![]() | -ve regulates |
| P | GO:0010207 photosystem II assembly |
| P | GO:0009765 photosynthesis, light harvesting |
| P | GO:0009766 primary charge separation |
| P | GO:0009767 photosynthetic electron transport chain |
| P | GO:0009777 photosynthetic phosphorylation |
| P | GO:0009780 photosynthetic NADP+ reduction |
| P | GO:0048564 photosystem I assembly |
| R | GO:0042548 regulation of photosynthesis, light reaction |
| NR | GO:0043155 negative regulation of photosynthesis, light reaction |
| Code | Relationship |
| P | part of |
| I | is a |
| Hostname | tomcat-8.ebi.ac.uk |
| Uptime | 17:46 13/10/2009 |
| Data version | 2009-11-21-04-03-45 |