The Alimentary Canal
Can you sort out the statements into True and False?
Carbohydrates, proteins and fats are all made up of carbon, hydrogen, nitrogen and oxygen.
Starch is a large carbohydrate molecule
Fats are made up of smaller units called amino acids
Proteins are made up of one or more glucose molecules
Starch molecules can be broken down by amylase.
Proteins are important for the growth and repair of cells
Can you name the 2 different ways we breakdown food in our bodies?
The alimentary canal (or gut) is the tube within the body through which food passes and is processed in various ways
Saliva is mixed with food during chewing
Teeth assist the mechanical breakdown of food
Saliva contains the enzyme amylase which starts the digestion of food
Saliva contains mucus that keeps the mouth moist and lubricates food for easier swallowing
Food has to be kept moving along the alimentary canal whilst being mixed with various juices
These actions are brought about by muscles in the walls of the canal over which a person has little or no conscious control
The squeezing action of muscles that is used to move food along the alimentary canal
What do the following enzymes breakdown?
What do they break the large moleculs down into?
‘the breakdown of large insoluble molecules into soluble molecules’