10: STRUCTURE + FUNCTION OF DIGESTIVE SYSTEM Flashcards
What do digestive enzymes in saliva do
salivary amylase starts chemical breakdown of carbs into simple sugars
what nutrients are broken down in the stomach
protein and fat
what does pepsin do to protein
it breaks it down into smaller amino acid chains
what is the main function of the liver
bile acids and secretion into small intestine
what happens in the pancreas
lipase breaks down fats into fatty acids, amylase and trypsin break down protein into amino acids
what happens in the small intestine
major site for digestion and absorption of nutrients. Bile emulsifies fat. Food mixed with pancreatic enzymes break down card, proteins and fats. transports nutrients to the blood stream. Major site where water absorption occurs
what happens in the large intestine
final stage of digestion. Role to reabsorb remaining water from food. Undigested food and water turns into poop
what is the role of fibre
needed for gut health, effective digestion and absorption of other nutrients
What does soluble fibre do
dissolves in the water of the digestive system and helps reduce amount of cholesterol in blood. softens stool
examples of soluble fibre
banana, carrots, potato, apple
What does insoluble fibre do
does not dissolve in water. passes through the gut without being broken down. helps other food through the passage. bulks up stool
examples of insoluble fibre
bread, potatoes, nuts and seeds.
