Dictionary.com
Thesaurus.com

photosystem

British  
/ ˈfəʊtəʊˌsɪstəm /

noun

  1. botany either of two pigment-containing systems, photosystem I or II, in which the light-dependent chemical reactions of photosynthesis occur in the chloroplasts of plants

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

An early stage that involved cyanobacteria innovating a new pigment, chlorophyll f, enabling the photosystem to harvest far-red light for the first time.

From Science Daily Nov. 28, 2023

The late stage, occurring approximately 2 billion years ago, further optimized the capacity to harvest far-red light by evolving a second modified photosystem incorporating chlorophyll f at critical locations.

From Science Daily Nov. 28, 2023

A pigment molecule in photosystem I accepts the electron.

From Textbooks Apr. 25, 2013

A pigment molecule in the photosystem absorbs one photon, a quantity or “packet” of light energy, at a time.

From Textbooks Apr. 25, 2013

A synthetic genome in yeast allows complex and rapid sequence manipulation to create synthetic chloroplast genomes; in fact, several photosystem proteins from Scenedesmus obliquus were found to function in .

From Nature Aug. 15, 2012

Vocabulary.com logo
by dictionary.com

Join 12,000,000 vocabulary learners

Start learning new words today on VocabTrainer.
You'll remember them forever.

Start training