Thursday, September 30, 2010

***THE 'C4' PLANTS***.

Ever heard or come about the characteristic C4 plants. These are plants in which the C4 cycle takes place having certain characters which includes;-:
Having the characteristic leaf anatomy where the vascular bundles are surrounded by a bundle sheath of compactly arranged with distinct parenchyma cells, which are rich in chloroplast and mitochondria. This bundle sheat are absent in what is also known as the C3 plants and if present they do not have chloroplasts.
Both the C4 and the C3 mechanisms are used for carbon assimilation to reduce the amount of carbon released to the atmosphere by the process of burning and other activities that leads to the release of carbon.
The rate of photosynthesis is much higher in C4 plants which aids the rate increase of oxygen.
The C4 plants can use higher light intensities and can adjust to high Carbondioxide(CO2) concentration.
The chloroplasts of the mesophyll cells contains the enzyme, Phosphopyruvic dikinase (which catalyses the reaction between pyruvic acid and ATP.)...

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