biological molecules

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  • Created by: Cmkayss
  • Created on: 03-04-17 12:53
what are polymers?
large complex molecules composed of monomers
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what are monomers?
smale basic molecular units which form polmers in large chains
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reactants and products of condensation
reactants- monomers products- polmer n water
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opposite of condensation
hydrolysis
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name 3 monosaccharides
glucose, fructose, galactose
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differance between alpha n beta glucose
oh group on last carbon is switch (top for beta)
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bond formed by condensation
glycosidic bond
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name 3 disaccharides and their monsacccharides
lactose-glucose galatcose sucrose-glucose fructose maltose-alpha glucose
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what is benedicts test testing for?
reducing n non reducing sugars
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how to test for non reducing sugars
add benedicts solution. boil. red precipitate forms
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extra step from non redcuing sugars
add bendicts reagent n diliute hcl boil n neutralise with hco3
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starch structure
made of amylose (long unbranched chains coiled+ very compact +good for storage) n amylopectin (long branched chains easily broken down)
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why is starch good for storage
compact chains and insoluble= no affect on water potiential
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structure glycogen
branched chains n very compacted
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cellulose structure
chains of unbranched B glucose linked by H bonds forming strong fibres = micrfibrils
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how to test for starch
add iodine dissolved in potassium iodide to sample dar blue= starch
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describe trigyceride
one glycerol n
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differance between saturated n unsaturated fatty acids
S has only sing c-c bonds US has sing n double
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what bond is between glycerol n fatty acids
ester bond
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describe phospholipid
one phosphate group n glycerol n 2 fatty acids in cell membrane
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Card 2

Front

what are monomers?

Back

smale basic molecular units which form polmers in large chains

Card 3

Front

reactants and products of condensation

Back

Preview of the front of card 3

Card 4

Front

opposite of condensation

Back

Preview of the front of card 4

Card 5

Front

name 3 monosaccharides

Back

Preview of the front of card 5
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