Excrition in Plants: The removal of all harmful substances produced in the metabolic processes, from the body of plant is called excrition. In plants the rate of catabolic processes is slow and waste products are produced in less amount. These products are not accumulated in plant body, they are used again in their anabolic processes. In plants the nitrogenous waste products are also used in the chemical processes, they are not removed from the body.Mostly carbohydrates are used in metabolic...