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11 Cards in this Set

  • Front
  • Back
Mouth- ingestion...
putting food in mouth, chewing and swallowing
Chewing food...?
increase the total surface area for enzyme to work on
Salivary glands...
produces an enzyme called "amylase"
which is used to break down the insoluble starch into soluble sugar maltose
Saliva contains...
mucus, which lubricates the food making it easier to swallow
Mastication (chewing) produces..
a bolus of food which is swallow and enters the oesophagus
tube between mouth and stomach
Food is moved by...
muscular contraction of the oesophagus's wall, called "peristalsis"
2 types of digestion....
1.) physical digestion
2.) chemical digestion
physical digestion involve..
crushing food into smaller pieces with teeth. Increasing surface area, more exposure to enzyme, increasing rate of chemical digestion
Chemical digestion is carried out by...
enzyme that speed up the break down of large, insoluble molecules into smaller, soluble molecule
In digestion, food are broken down by...
hydrolysis reaction (breakdown with water)