Logged out
Access All our Essays in an Instant
Swap your work for FREE access, or pay £4.99 for instant access
Photosynthesis is the fixation of carbon dioxide into organic compounds, by green plants, using solar energy and chlorophyll. The CO2 is reduced using H+ ions from water.
Member rating: No Rating | Words: | Submitted: Fri Aug 18 2006
Page Preview
On the left is an image preview of every page of this document, and below are the first 150 words with formatting removed:
Photosynthesis is the fixation of carbon dioxide into organic compounds, by green plants, using solar energy and chlorophyll. The CO2 is reduced using H+ ions from water. * The chloroplast pigments are located in the lamellae (Thylokoid membranes). * These pigments remain embedded in the Thylokoid membrane. * Chlorophylls have a polar 'porphyrin' head containing a Mg+ ion and a non-polar long hydrocarbon (phytol) tail. The polar head is attached to the proteins of the thylakoid membranes while the non-polar tail extends into the lipid layer of the membrane phospholipid bilayer. * Chlorophylls, carotenoids and electron carriers are assembled together in the thylakoids membrane to form Photosystems I and PS II. There are several forms of chlorophyll, differing slightly in colour, chemical structure and absorption peaks. Carotenoids are hydrocarbons situated close to the chlorophyll. * The absorption spectrum is a graph that shows how much light a particular pigment absorbs at each wavelength. It...
Get instant access
- Instant, unlimited access to our documents in full
- Swap your work for free access, or pay £4.99
- To see the full version of this document and 149,921 others
