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