Complex issue.When cyanobacteria cyanobacteria (sī'ənōbăktĭr`ēə, sī-ăn'ō–) or blue-green algae, photosynthetic bacteria that contain chlorophyll. and plants transfer electrons photosynthetically, light is absorbed not by their photosynthetic proteins but by chlorophylls ("Protein Power: Solar cell solar cell, semiconductor devised to convert light to electric current. It is a specially constructed diode, usually made of silicon crystal. When light strikes the exposed active surface, it knocks electrons loose from their sites in the crystal. produces electricity from spinach and bacterial proteins," SN: 6/5/04, p. 355). Some of these proteins indeed participate in electron flow, but they are not plant photoreceptors Photoreceptors Specialized nerve cells (rods and cones) in the retina that are responsible for vision. Mentioned in: Macular Degeneration . How then, do they "retain their function" and "absorb photons" in the fabricated solar cell described? CLEON ROSS, VICTOR, IDAHO Victor is a city in Teton County, Idaho, United States. The population was 840 at the 2000 census. Geography Victor is located at (43.602945, -111.112343)GR1. The materials that the scientists were referring to as proteins are actually protein complexes containing chlorophyll. When the researchers isolate the complexes, they get the associated chlorophylls.--A. GOHO |
|
||||||||||||||||||
Printer friendly
Cite/link
Email
Feedback
Reader Opinion