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4268038
CARBOHYDRATES & SUGARS
Descripción
Mind-Map of monosaccharides, disaccharides and polysaccharides. This does not attempt to have the whole of the specification on this topic covered but should have most of it :-)
Sin etiquetas
biology
as-level
sugars
saccharides
monosaccharides
disaccharides
polysaccharides
benedict's test
as level
carbohydrates
biology
biological molecules
as - level
Mapa Mental por
Eleanor H
, actualizado hace más de 1 año
Más
Menos
Creado por
Eleanor H
hace casi 9 años
492
20
0
Resumen del Recurso
CARBOHYDRATES & SUGARS
Monosaccharides
reducing sugars
Properties
sweet tasting
soluble
Benedict's Test
forms red precipitate of Copper (I) Oxide
GLUCOSE
2 isomers
Beta: Hydroxyl group at top
TIP: "It's Better so it's at the top"
Alpha: Hydoxyl group at bottom
FRUCTOSE
GALACTOSE
Disaccharides
MALTOSE glucose + glucose
SUCROSE fructose + glucose
LACTOSE galactose + glucose
Polysaccharides
GLYCOGEN
storage in animals
very compact
chain of alpha glucose joined by 1,4 and 1,6 glycosidic bonds
branched
fast at hydrolysis to form glucose for respiration
CELLULOSE
plant cell walls
extremely strong
microfibrils - chains of cellulose held together by hydrogen bonds
long unbranched beta glucose chain joined with beta 1,4 glycosidic bonds
STARCH
storage in plants
AMYLOPECTIN
branched
easily hydrolysed to provide glucose for respiration
glucoses joined by alpha 1,4 glycosidic bonds and branches of alpha 1,6 glycosidic bonds
stains deep blue in iodine
AMYLOSE
glucoses joined by alpha 1,4 glycosidic bonds
forms alpha glucose helix
300 glucoses per helix and 6 per turn
very compact
all insoluble
polymer
HYDROLYSIS & CONDENSATION
Splitting apart by putting in water
'Gluing' together, water being a by-product
Recursos multimedia adjuntos
224f5488-afd4-4042-81e7-cc04b5fa0f8e (image/png)
d8419467-151a-4055-847e-b29e1c87eda9 (image/png)
7970d2ea-5f46-45e0-a51e-0d4a22ea61a7 (image/png)
859ede87-da8a-43c9-aa65-d6820e9ae227 (image/jpg)
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