C.  ORAL CAVITY (MOUTH) ANSWERS:

    1.  The act of taking in food is known as  I N G E S T I O N

    2.  DEFINITION --- DIGESTION is the conversion of large  I N S O L U B L E 
         molecules into smaller   S O L U B L E  ones.

    3.  What biochemical process that we already studied does ... match?     
         H Y D R O L Y S I S

    4.  The cutting or grinding of food to increase its  S U R F A C E    A R E A 
         is known as  M E C H A N I C A L    (P H Y S I C A L) digestion

    5.  The chemical splitting of large molecules into smaller ones is a type of 
         B I O C H E M I C A L   (E N Z Y M A T I C) digestion.
         The Zyme root as pictured is short for   E N Z Y M E

    6.  The enzymes of the mouth are secreted by the  S A L I V A R Y   glands.