digestion and absorption Flashcards
What is the enzyme in saliva and where is it secreted?
salivary amylase, salivary glands
How is food digested in the mouth cavity?
。break food into smaller pieces by chewing -> increase surface area
。salivary amylase breaks down starch into maltose
What are the functions of saliva?
。makes food moist -> easier to swallow
The food is pushed down the oesophagus by ……….
peristalsis
What is the functions of churning in the stomach?
。breaks food into smaller pieces
。help mix food with gastric juice
What does gastric juice contain?
enzymes and hydrochloric acid
Enzymes in gastric juice is used to digest……
proteins
Absorbed food substances are carried to all parts of the body via the ………
transport system
Where is bile formed and what are its functions?
。produced in the liver, stored in the gall bladder
。emulsifies lipids into smaller oil droplets -> increased surface area
What food substances are digested in the small intestines?
carbohydrates, lipids, proteins
