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Photosynthesis
Two main energy pathways are recognised in living systems. These are photosynthesis and cellular respiration. Both have their respective but different electron transfer chains. During photosynthesis carbohydrates are synthesized from carbon dioxide and water in the presence of sunlight and the green pigment chlorophyll. This is an anabolic process. In this process radiant energy of the sun is converted into chemical energy and stored in the chemical bonds of carbohydrates.
Note: The sun is the ultimate source of energy for all activities of living matter.
Three ways in which food might become contaminated by harmful bacteria. Food may become contaminated:- (i) from the unwashed hands of a food-handler, (ii) by house- flies
Define Class Cephalopoda in animal kingdom? This group-including squids, octopuses, and the nautilus-is considered by most scientists to have the highest intelligence among all
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Q. Why is it said that during photosynthesis carbon dioxide is improved to form glucose? During photosynthesis carbon dioxide is energetically improve with hydrogen from water.
57. While planning for an artificial hybridisation programme involving dioecious plants, which of the following steps will be irrelevant A usting of pollen on stigma B Collection
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PENIS - Intromittent organ. Erectile, its apex is penis glanse. Covered by prepuce (part of skin). Main function is insemination (To transfer sperms in vagina in deep).
What are possible treatments available for a herniated disc injury?
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