1.2 Digestion in the stomach

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  • Created by: egreen94
  • Created on: 04-10-20 17:28
Describe the strong mechanical action
smooth muscle contracts and mixes food with gastric juice
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What is chyme
thick semi-liquid of partially digested starch and proteins
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What 2 things does the low pH of the stomach do
Both
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What carbohydrate digestion occurs in the stomach
only mechanical and liquefaction
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How much lipid digestion occurs in the stomach
15%
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Which enzymes hydrolyse triglycerides
Lingual and gastric lipases
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Which nutrients can be bound to proteins
iron and other minerals
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What does the pyloric sphincter do
regulates entry of chyme into duodenum
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At what rate does chyme exit the pylorus through the pyloric orifice
1-3ml twice per minute
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Which enzyme cleaves proteins peptide bonds
endopeptidase pepsin
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How does pepsinogen lead to protein digestion
Activated by pH< 5 to active pepsin, cleaves interior peptide bonds
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What happens 2-6 hours after meals
gastric empyting
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Which nutrients are absorbed in the stomach
Only alcohol
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Other cards in this set

Card 2

Front

What is chyme

Back

thick semi-liquid of partially digested starch and proteins

Card 3

Front

What 2 things does the low pH of the stomach do

Back

Preview of the front of card 3

Card 4

Front

What carbohydrate digestion occurs in the stomach

Back

Preview of the front of card 4

Card 5

Front

How much lipid digestion occurs in the stomach

Back

Preview of the front of card 5
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