mouth teeth oesophagus and stomach

Question 1

define and give examples in the body of mechanical digestion

Answer 1

-food undergoes physical change
-it is broken down into smaller pieces (increased SA) and physically forced to mix together with various enzymes

example: jaw, tongue and the teeth

Question 2

define and give examples in the body of chemical digestion

Answer 2

food undergoes chemical changes
the enzyme that is mixed with break chemical bonds within larger molecules to form smaller molecules (catabolism)

Question 3

the mouth

Answer 3

-where the intake of food (ingestion) occurs

the jaw, tongue and teeth act to start mechanical digestion of breaking down food into smaller pieces