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These plant sugars are polymerized for storage as long-chain carbohydrates, such as starch and cellulose; glucose is also used to make fats and proteins. When autotrophs are eaten by heterotrophs , i.e., consumers such as animals, the carbohydrates , fats , and proteins contained in them become energy sources for the heterotrophs . [ 12 ]
The carbohydrates produced are stored in or used by the plant. Composite image showing the global distribution of photosynthesis, including both oceanic phytoplankton and terrestrial vegetation . Dark red and blue-green indicate regions of high photosynthetic activity in the ocean and on land, respectively.
According to Oxford English Dictionary the specific term glycobiology was coined in 1988 by Prof. Raymond Dwek to recognize the coming together of the traditional disciplines of carbohydrate chemistry and biochemistry. [3] This coming together was as a result of a much greater understanding of the cellular and molecular biology of glycans.
The fossil history of flowering plants records the development of flowers and other distinctive structures of the angiosperms, now the dominant group of plants on land.The history is controversial as flowering plants appear in great diversity in the Cretaceous, with scanty and debatable records before that, creating a puzzle for evolutionary biologists that Charles Darwin named an "abominable ...
A C3 plant uses the Calvin cycle for the initial steps that incorporate CO 2 into organic material. A C4 plant prefaces the Calvin cycle with reactions that incorporate CO 2 into four-carbon compounds. A CAM plant uses crassulacean acid metabolism, an adaptation for photosynthesis in arid conditions. C4 and CAM plants have special adaptations ...
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Today, C 4 plants represent about 5% of Earth's plant biomass and 3% of its known plant species. [ 18 ] [ 25 ] Despite this scarcity, they account for about 23% of terrestrial carbon fixation. [ 26 ] [ 27 ] Increasing the proportion of C 4 plants on earth could assist biosequestration of CO 2 and represent an important climate change avoidance ...
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