Organisation 2: The Digestive System & Digestive Enzymes Flashcards
What does the structure of starch consist of?
The structure of starch consists of a chain of glucose molecules.
What is starch an example of and what is the name of the enzyme it is broken down by?
Starch is an example of a carbohydrate and carbohydrates are broken down by enzymes called carbohydrase’s but in the case of starch the specific enzymes it is broken down by is called amylase.
Where is amylase found?
Amylase is found in the saliva and pancreatic fluid.
What is the name of the enzyme carbohydrates are broken down by?
The name of the enzyme which breaks down carbohydrates is carbohydrase’s.
What may happen when carbohydrase’s like starch are broken down?
When carbohydrates like starch are broken down, we produce simple sugars.
What does the structure of a lipid molecule consist of?
The structure of a lipid molecule consists of a molecule of glycerol attached to three molecules of fatty acids.
What is the name of the enzyme which breaks down lipids?
The name of the enzyme which breaks down lipids is lipase.
Where is lipase found?
Lipase is found in the pancreatic fluid and also in the small intestine.
In which organ is bile made and in which organ is it stored?
Bile is made in the liver and stored in the gall bladder.
Is bile considered an enzyme?
No, bile is not an enzyme.
What is the role of bile? And how does it do this?
Bile helps to speed up the digestion of lipids it does this by converting large lipid droplets into smaller droplets. Bile emulsifies the lipid.
What is emulsification?
Emulsification is the tiny drops of one liquid spread evenly through a second liquid.
What happens after bile emulsifies the lipid? And what does this then do?
After bile emulsifies the lipid, the surface area of the lipid droplets is massively increased this then increases the rate of lipid breakdown by lipase.
Is bile alkaline or acidic? How does this then help fulfil its role?
Bile is alkaline this allows it to neutralise stomach acid, creating alkaline solutions in the small intestine.
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