biology unit 1

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what do carbohydrates contain
conatin carbon oxygen and hydrogen
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what are monosaccahirides
they are small organic molevlues that procide buildign blocks for larger carbohydrates
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what is the gereral formular of a monossacheride
(CH20)n C6H1206
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what does n =
when n=3 troisose for metabloism, when n=5 pentose formation of necleic acids, when n=6 energy hexose source of energy
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how many isomers does glucose consist of
glucose consists of alpha glucose and beta glucose
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how are dissacharides formed
two monosacharides joined together in a condenstaion reaction with the elimination of water and a a glycocidic bond is formed
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what monsosacrahride form to make a disacharide
glucose + glusocse = maltose cane sugar, glusoce+ fructose = sucrose cane sugar, glucose + galactose = lactose milk sugar
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which sugar is reducing and non reducing
sucorse is non reducing and lactose and fructise reducing
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how to test for non reducimg sugar
test will reduce copper sulfat and produce a precipitate of copper oxide and when adding a universal indicator turns red/ borwn
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how to test for a reducing sugar
will not hydrolise copper sulfate and produces a negative benedicts test when adding a universal indiactor stays blue
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what are polysaccharides
are large complex polymers
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how have they become addapted to storage
starge in plants and glycogen in animlas, made up of alpha glucose held togethr by glyocosidic bonds and is a compact molecuke with no osmotic effect in plants
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two tpes of alpha glucose
amylose is linear and unbranched is a coild helix and had glycosidic bonds on 1-4 branches, amyloceptin coild spring spiral structure whas glycosidc bonds on branche 1-4 and 1-6
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how have they become addapted to structure
cellulose in plants and chitin in insects, long parraprel chains of beta glucose crosslinked together with hydrogen bonds.the long chains form microfibrial and the fibres give the strengthe and rigity to plant cell walls and exosketeton of instects
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Card 2

Front

what are monosaccahirides

Back

they are small organic molevlues that procide buildign blocks for larger carbohydrates

Card 3

Front

what is the gereral formular of a monossacheride

Back

Preview of the front of card 3

Card 4

Front

what does n =

Back

Preview of the front of card 4

Card 5

Front

how many isomers does glucose consist of

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