Digestive System and their Interaction with Other Organ

Digestive System and their Interaction with Other Organ

• 1.
  DIGESTIVE SYSTEM AND THEIRINTERACTION WITH THE OTHER ORGAN Module III Science 8
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  LESSON OBJECTIVES 1. identifythe basic organs responsible in the process ,  2. sequence the process that involve in the digestion and 3. explain the importance of digestion in the living organisms.
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  Food is abasic unit for survival
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  DIGESTION: ITS PROCESS Digestionis a process by which food is changed into absorbable nutrients that the body can use. The food passes through the digestive tract, a long coiled, muscular tube that stretches from the mouth to the anus
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  HUMAN DIGESTIVE SYSTEM Source:Google Images
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  Source: Google Images
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  PROCESS The digestive systemis concerned with the process of : 1.Ingestion 2.Digestion 3.Absorption 4.Egestion
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  TYPES OF DIGESTIVESYSTEM 1. Incomplete digestive system -wherein there is only single opening for the ingestion of food and elimination of undigested materials -more common among invertebrates such as planarians and cnidarians where anus is absent. 2. Complete digestive system - they have digestive tubes with two openings- a mouth and an anus - where food moves along the digestive tube in one direction.
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  STAGES IN THEDIGESTION PROCESS 1. Mechanical digestion -through which food undergoes physical change by tearing, grinding and chewing 2. Chemical digestion -wherein food is broken down into simpler molecules in the presence of enzymes
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  ENZYMES AND ITSROLE IN DIGESTION Source: Google Images
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  ACTIVITY Label your Digestive System
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  MINUTE QUIZ In a¼ sheet of paper, answer the question below. How important are the enzymes in our body especially in the digestion process?
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  ASSIGNMENT In one halfcrosswise. Answer the question below. Write a paragraph describing what happens to the food you eat at breakfast. Trace its pathway from mouth to the anus. Includes the enzymes involved in the process. (NOTE: The paragraph should comprises 150 words only.)
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  FOOD FOR THOUGHT “Bebold enough to use your voice, brave enough to listen to your heart and strong enough to live the life you’ve always imagined.”
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  Thank you for Listening. Goodday!