Digestive system Flashcards
TWhy must digestion occur?
Food needs to be broken down so that the small and soluble substances so that can be absorbed by our body and used by the body cells.
What enzyme is Carbohydrate digested by?
Carbohydrase
What is the end product of carbohydrate what can it be used for
The end product is simple sugar which is used for cellular respiration
Protein is digested by?
Protease
What is the end product of protein what can it be used for?
The end product is amino acids which is used for muscular repair and muscular growth.
What is lipids digested by?
Lipase
What is the end product of lipase what can it be used for
Fatty acids and glycerol which is used to store fat.
Why are digestive enzymes needed?
To speed up the process of digestion
What is the physical digestion in the mouth?
Chewing and breaking down food into smaller pieces
What is the chemical digestion in the mouth?
Saliva in mouth contains carbohydrase that help to brake down the carbohydrate into simple sugar.
What does the gullet do?
The gullets muscles helps it push the food down the stomach.
What physical digestion takes place in stomach?
Stomach churns food into smaller pieces.
What is the chemical digestion in the stomach?
Releases gastric juices that contain protease to
Why is the digestion of carbohydrate stopped in stomach
The stomach has a PH of 2 as it contains gastric juice which causes the carbohydrase to denature resulting for digestion to be stopped
What is the chemical digestion in the small intestine?
Carbohydrate, protein and fats are fully digested
