Respiration - Respiration: Energy for Plant Metabolism

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Respiration: Energy for Plant Metabolism Respiration is the process through which energy stored in organic molecules is released to do  metabolic work. A stepwise process conducted in all living cells, it is controlled by enzymes, and  releases carbon dioxide and water. Breathing, the inspiration and expiration of air by animals, is not the same as respiration. Both  animals and plants respire, but plants neither breathe nor have specialized respiratory systems as do  animals. In plants, gases diffuse passively into the plant (through the stomata or directly into the  epidermal cells) where they come into contact with the moist cellular membranes and then move in  water along diffusion gradients between and within cells. No special carriers (such as the  hemoglobin of human blood) or organs (such as lungs or gills) aid in the diffusion. Glucose is the originating molecule for respiration; other reserve foods either follow different 
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Respiration - Respiration: Energy for Plant Metabolism

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