292014
Description
Flashcards by joehilton101, updated more than 1 year ago
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Created by joehilton101
over 10 years ago
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| Question | Answer |
| what are polysaccharides | poly means many carbohydrates starch for plant storage is good due to its alfa-helical structure |
| What is lactose intolerance? | when undigested lactose reaches large intestine microorganisms break it down giving result of lots of gas |
| lactose intolerance can result in | bloating diarrhoea |
| monosaccharides are | simple sugars eg glucose or fructose |
| what happens when two monosaccharides join together | a disaccharides formed by condensation reaction |
| What are the 2 types of isomers | beta-glucose alpha-glucose |
| what bond is a alpha-glucose isomer? | 1-4 glycosidic bond |
| what bond is a beta-glucose isomer? | 1-4 glycocidic bond |
| what are disaccharides? | 2 monosaccharides joined together |
| what are the 3 types of disaccharides? | maltose lactose sucrose |
| what is maltose used for? | germinating seeds |
| what is sucrose used for? | transport carbohydrate in plants |
| what is lactose used for? | milk |
| what is a condensation reaction | two monomer join together and water is released |
| characteristics of non-reducing sugars? | no free carbonyl group don't reduce other molecules |
| characteristics of reducing sugars? | have free carbonyl group can reduce molecules |
| examples of reducing sugars? | glucose fructose maltose lactose |
| examples of non-reducing sugars | sucrose |
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