The Stomach (AQA GCSE Biology): Flashcards
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Practise the cards
15 cards from this deck
Shape of the stomach
Shape of the stomach
J-shaped
Location of stomach
Location of stomach
Between oesophagus and small intestine
Process of mixing food with digestive juices in stomach
Process of mixing food with digestive juices in stomach
Churning
What gastric glands secrete
What gastric glands secrete
Gastric juice
Three components of gastric juice
Three components of gastric juice
Hydrochloric acid (HCl), pepsin, and mucus
Role of HCl in killing pathogens
Role of HCl in killing pathogens
Creates acidic environment that kills bacteria & pathogens
Why HCl is important for pepsin
Why HCl is important for pepsin
Provides optimal pH for pepsin to function
Type of enzyme pepsin is
Type of enzyme pepsin is
Protease enzyme
Inactive form of pepsin
Inactive form of pepsin
Pepsinogen
What activates pepsinogen
What activates pepsinogen
Acidic environment
Function of mucus in stomach
Function of mucus in stomach
Protects lining from acid & prevents self-digestion
Semi-liquid form of food after churning
Semi-liquid form of food after churning
Chyme
Valve between oesophagus and stomach
Valve between oesophagus and stomach
Lower oesophageal sphincter
Valve between stomach and small intestine
Valve between stomach and small intestine
Pyloric sphincter
First part of small intestine
First part of small intestine
Duodenum