photosynthesis
Biology

photosynthesis


Term: photosynthesis

Origin
Anc Greek ????/photo(=light) + ????????/synthesis(=(=composition) à composition by light
>????> ?????/fosko(=to illuminate) > ????, ???/fos (=light)
>????????? /syntithimi (=to combine) >???/syn(=together" + ???????/tithenai(=to put, place, to arrange)

History  
The term was coined in 1893 by American botanist Charles Barnes  (1858-1910) instead of the previous word "assimilation". He wrote " ?assimilation?, ?assimilation proper?, and ?assimilation of carbon?. I think that none of these terms is appropriate. Assimilation has long been used in animal physiology to designate the appropriation of digested food by the different tissues, and its conversion into the substances of those tissues.." Barnes preferred the word "photosyntax"  but "photosynthesis" came into common usage as the term of choice. 


Definition:
Photosynthesis is a physico-chemical process of converting light energy to chemical energy contained in organic compounds.




- Q: Discuss The Role Of Membranes In The Synthesis Of Atp During Photosynthesis
The chloroplast is enclosed by two membranes, and this separates reactions within the chloroplast from the rest of the cytoplasm. The double membrane of the chloroplast also serves to maintain high substrate concentrations within the chloroplast for photosynthesis....

- #103 The Light-independent Reactions (calvin Cycle)
The light-independent reactions take place in the stroma of the chloroplast, where the enzyme ribulose bisphosphate carboxylase, usually known as rubisco, is found. 1. Carbon fixation CO2 diffuses into the stroma from the air spaces within the...

- #101 Photosynthetic Pigments
Photosynthetic pigments are pigments presented in chloroplasts or photosynthetic bacteria. They capture light energy necessary for photosynthesis and convert it to chemical energy.  PigmentsA pigment is any substance that absorbs light.The color...

- #99 Photosynthesis Overview
Photosynthesis is a series of reactions in which energy transferred as light is transformed to chemical energy. Energy from light is trapped by chlorophyll, and this energy is then used to ? split apart the strong bonds in water molecules to release...

- Photosynthesis And Cellular Respiration
Photosynthesis is the processes of converting carbon dioxide and water, using light energy, into glucose and oxygen. Plants, algae, and certain prokaryotes capture about 1% of the energy in the sunlight that reaches Earth and convert it to chemical energy...



Biology








.