Flashcards
AS Biology monosaccharides and disaccharides
Flashcards do conjunto (18)
- 1what are polysaccharidespoly means many
carbohydrates
starch for plant storage is good due to its alfa-helical structure - 2What is lactose intolerance?when undigested lactose reaches large intestine
microorganisms break it down
giving result of lots of gas - 3lactose intolerance can result inbloating
diarrhoea - 4monosaccharides aresimple sugars
eg glucose or fructose - 5what happens when two monosaccharides join togethera disaccharides formed by condensation reaction
- 6What are the 2 types of isomersbeta-glucose
alpha-glucose - 7what bond is a alpha-glucose isomer?1-4 glycosidic bond
- 8what bond is a beta-glucose isomer?1-4 glycocidic bond
- 9what are disaccharides?2 monosaccharides joined together
- 10what are the 3 types of disaccharides?maltose
lactose
sucrose - 11what is maltose used for?germinating seeds
- 12what is sucrose used for?transport carbohydrate in plants
- 13what is lactose used for?milk
- 14what is a condensation reactiontwo monomer join together and water is released
- 15characteristics of non-reducing sugars?no free carbonyl group
don't reduce other molecules - 16characteristics of reducing sugars?have free carbonyl group
can reduce molecules - 17examples of reducing sugars?glucose
fructose
maltose
lactose - 18examples of non-reducing sugarssucrose
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- A level Biology (enzymes and digestive system ) FlashCards sobre AS Biology monosaccharides and disaccharides, criado por joehilton101 em 21-10-2013.
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