https://www.khanacademy.org/science/biology/photosynthesis-in-plants/the-light-dependent-reactions-of-photosynthesis/a/light-dependent-reactions

These molecules store energy for use in the next stage of photosynthesis: the ..... The cyclic pathway does not make NADPH, since electrons are routed away ...

https://en.wikipedia.org/wiki/Photophosphorylation

In the process of photosynthesis, the phosphorylation of ADP to form ATP using the energy of ... This pathway is known as cyclic photophosphorylation, and it produces neither O2 nor NADPH. Unlike non-cyclic photophosphorylation, NADP+ ...

https://www.biologycorner.com/APbiology/cellular/notes_photosynthesis2.html

ATP production during photosynthesis is sometimes called photophosphorylation ; therefore these pathways are also known as cyclic and noncyclic ...

http://mandevillehigh.stpsb.org/teachersites/laura_decker/photosystem_notes.htm

Light Reactions: Photosystem I & II. When photosystem II absorbs light, an electron excited to a higher energy level in the reaction center chlorophyll (P680) is ...

https://www.ncbi.nlm.nih.gov/pubmed/15175756

Cyclic electron flow around photosystem I is essential for photosynthesis. ... which both PSI cyclic pathways are impaired, and present evidence that cyclic flow is ...

http://hyperphysics.phy-astr.gsu.edu/hbase/Biology/etcyc.html

Cyclic Electron Transport in Photosynthesis. Photophosphorylation refers to the use of light energy to ultimately provide the energy to convert ADP to ATP, thus ...

https://www.youtube.com/watch?v=ublVWZpDkOw

Sep 20, 2015 ... This musical lecture is the second of three videos about the light reactions of photosynthesis. It focuses on how the structure of the thylakoid ...

https://chem.libretexts.org/Bookshelves/Biological_Chemistry/Supplemental_Modules_(Biological_Chemistry)/Photosynthesis/Photosynthesis_overview/The_Light_Reactions

All photosythetic cells and photosynthetic bacteria contain photosystem I but only ... along one of two pathways giving cyclic electron flow or noncyclic electron flow . ... In this pathway, the electrons that were excited by the P700 in photosystem I ...

https://www.britannica.com/science/photosynthesis/Photosystems-I-and-II

It appears, however, that additional light is absorbed and used to form ATP by a cyclic photophosphorylation pathway. (The cyclic photophosphorylation pathway  ...

https://www.ebi.ac.uk/interpro/potm/2004_11/Page1.htm

Although only 1% of the light that reaches the earth is captured by photosynthesis , it is enough to provide the energy needed to drive all life on earth. By using ...