Page 145 - Primary Five Science
P. 145

11. Define the following:



         A)Ingestion



         B)Egestion



         C)Indigestion




         D)Absorption



         12. What is the role of enzymes in digestion



         13. Mention 3 characteristics of enzymes



         14. State any one enzymes that work under;



         A)Acidic conditions



         B)Alkaline conditions



         15. State 2 uses of saliva in the mouth.




         16. State the type of digestion that takes place in the mouth.



         17. Mention any 3 causes of indigestion



         18. Why is it  important to practice food hygiene?



         19. Mention any 3 conditions or diseases that can lead to diar-



         rhea.



         20. List any 2 digestive problems, their causes and how they


         can be prevented.
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