What is the role of roughage in the alimentary tract?
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Roughage is the fibrous indigestible material in food derived from plants. It helps in proper bowel movements and movement of food through the alimentary canal. It also absorbs water as it moves through the large intestine and this allows the fecal matter to be released easily.
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ROUGHAGE helps in excretion of feacal material because it contains fibers.
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