DEFINITIONS AND KEY POINTS FOR Photosynthesis
| TERMS DEFINATIONS | |
| Photosyntbes; Photosynthesis (photo-light, synthesis-putting together) may be defined as the process in which the .-e. –een plants synthesize carbohydrates from carbon . dioxide and water, using the energy of sunlight. | |
| Absorption spectrum | A plot (graph)showing absorption of light of different wavelength by a pigment is called absorption spectrum. |
| Photolysis | The splitting of water and release of oxygen during photosynthesis is called photolysis. |
| Cyclic
phosphorylation |
The returning back of the same excited electrons to the excited chlorophyll by producing a molecule of ATP it is called cyclic phosphorylation. |
| Chemiosmosis | The coupling reaction in which synthesis of ATP molecule takes during movement of Flt across an If gradient is called chemiosmosis. |
| Calvin cycle | The series of reactions in which carbon is flied in the synthesis of sugar is called Calvin — Benson cycle. |
| Principle of
limiting factors |
It is stated that when many factors affect on a
process the rate of the process is limited by the pace of the slowest factor. |
| Vant Hoff’s Ipw | According to this law the rate of chemical reaction doubles for every rise of 10°C. |
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