egestionto give out undigested food from


EGESTION

  1. To give out undigested food from alimentary canal.
  2. Faeces can remain in colon for 36 hrs. then moving into rectum by gastro-colic reflex.
  3. Faeces consists of 3/4 H O & 1/4 solid.
  4. In solid part 3% bacteria, 30% roughage, 20% fat, 15% inorganic and 3% protein.
  5. Dead mucosal cells, mucous, cholesteroal also present. NH3, CH4 are negligible.
  6. Brown colour is due to stercobilin & Stercobilinogen.
  7. Foul smell is due to sketol, Indol & treptophan.

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Biology: egestionto give out undigested food from
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