photosystem

Noun

Meaning

English Wikipedia has an article on:photosystemWikipedia
photosystem (plural photosystems)

(biochemistry) Either of two biochemical systems, active in chloroplasts, that are part of photosynthesis

Phrases with the word

Examples

However, since photosystem II is the first step of the Z-scheme, an external source of electrons is required to reduce its oxidized chlorophyll a molecules. Source: Internet

Its production leaves chlorophyll in photosystem I with a deficit of electrons (chlorophyll has been oxidized), which must be balanced by some other reducing agent that will supply the missing electron. Source: Internet

In contrast, photosystem I and ATP synthase are large protein complexes which jut out into the stroma. Source: Internet

Photosystem II and photosystem I contain light-harvesting complexes with chlorophyll and carotenoids that absorb light energy and use it to energize electrons. Source: Internet

In the non-cyclic reaction, the photons are captured in the light-harvesting antenna complexes of photosystem II by chlorophyll and other accessory pigments (see diagram at right). Source: Internet

The antenna system is at the core of the chlorophyll molecule of the photosystem II reaction center. Source: Internet

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