Digestive System Flashcards
What is the main function of the digestive system?
To break down food into nutrients that can be absorbed by the body
Which organ produces bile to help with digestion?
Liver
True or False: The small intestine is where most of the nutrient absorption takes place.
True
What enzyme is responsible for breaking down carbohydrates in the mouth?
Amylase
What is the function of the pancreas in the digestive system?
To produce digestive enzymes that helps in digestion.
Where does protein digestion primarily occur?
Stomach
What is the role of the gallbladder in digestion?
To store and concentrate bile produced by the liver
Which part of the digestive system is responsible for absorbing water and electrolytes?
Large intestine
What is the function of the villi in the small intestine?
To increase surface area for nutrient absorption
What is the pH level of the stomach acid?
Around 1 - 2
What is the main function of the large intestine?
To absorb water and electrolytes, and to form and store feces
Where does the final stage of digestion and nutrient absorption occur?
Large intestine
Which enzyme is responsible for breaking down fats in the small intestine?
Lipase
What is the function of the mucus in the stomach?
To protect the stomach lining from the acidic environment
What is the primary function of the large intestine in the digestive process?
To absorb water and electrolytes from indigestible food residue
What is the role of the esophagus in digestion?
To transport food from the mouth to the stomach
What is the main function of the salivary glands in digestion?
To produce saliva containing enzymes that start the digestion of carbohydrates
What is the main function of the rectum in the digestive system?
To store feces until they are expelled from the body
What is ingestion?
Putting food into your mouth
Is saliva an example of digestive juices?True or False?
True, because it helps to digest food.It also makes food easier to swallow
How does gullet push the food into the stomach?
The muscles in oesophagus contract and relax and move the food along.
What is gut?
Its a hollow tube made of different organs.It start from mouth, to food pipe, stomach, small and large intestines and anus.
What is the role of liver and pancreas?
They add more digestive juices to small intestines for further digestion and hence absorption.
Liver produces bile which helps digest fats.It contains enzyme call lipase which breaks down fat into lipids
What is digestion?
Breaking down of large insoluble molecules into smaller soluble ones.
What is digestive system made of?
Gut - Mouth, food pipe, stomach, large and small intestines and anus.
Other organs - Salivary glands, liver, pancreas, rectum
What is another name for egestion?
Defaecation
What is the difference between excretion and egestion?
Excretion - getting rid of wastes produces by cells.
Egestion - getting rid of solid undigested food from the body
Why do we need to digest food?
To break down food into smaller soluble molecules and absorb the nutrients in them needed for cells to grow, move, develop and repair.
