CBSE Class 7 Answered
list and briefly describe the four stages of processing of food in human body.
Asked by Shreeya Nemani | 25 Aug, 2018, 03:16: PM
Expert Answer
Ingestion: It is the process of taking in food into the digestive tract.
Digestion: Enzymes are capable of breaking down the complex, insoluble compounds into the simple and soluble ones, thereby aiding in the process of digestion. They are highly specific, each acting on a particular kind of food.
Absorption: It involves the transfer of digested food from the intestine into the blood.
Assimilation: The process of utilization of nutrients in the cells of the body.
Egestion: Egestion, also called defecation, is the process of removal of undigested food materials left behind after the process of absorption is complete
Answered by Sivanand Patnaik | 27 Aug, 2018, 11:15: AM
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