Flashcards in Digestion Deck (15):
Label the digestive system
Gall bladder. Bile duct
Small intestine. Large intestine
What do carbohydrates do?
What does protein do?
What does water do?
What does fibre do?
The presence of sugar can be confirmed by using _____________. If sugar is present this chemical will change from _____________ to _____________ whenever it is heated in a water bath.
Blue/green to brick red
Starch can be detected by using __________. __________ changes from ________ _________ to _______________ if starch is present.
Orange yellow to blue black
Biuret solution can be used to detect the presence of _________. ___________ will change the biuret solution from a light blue colour to a _________ colour.
State 2 things which happens to food in the mouth
Food is broken up by teeth and tongue
Saliva breaks food down
State 2 things which happens in the stomach
Acid breaks down food into smaller substances that can enter the blood stream
What is the correct order for digestion?
What part of the digestive system does digestion start?
What is peristalsis?
The muscular contractions that push food through the digestive system
What is the purpose of acid in the stomach
To kill germs and activate enzymes that digest protein