W3 Mono/Polysacchrides Flashcards

1
Q

what are carbohydrates primarily used for

A

most common energy source

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2
Q

what are carbs made of

A

C
H
O2

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3
Q

whats the ratio of C,H,O in carbs

A

1:2:1

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4
Q

what are the 3 monosacchrides

A

glucose (a/b)
galactose
fructose

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5
Q

what are the 3 disacchrides

A

maltose
lactose
sucrose

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6
Q

what are the monosacchrides for maltose

A

alpha glucose + alpha glucose

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7
Q

what are the monosacchrides for lactose

A

beta galactose + beta glucose

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8
Q

what are the monosacchrides for sucrose

A

beta fuctose + alpha glucose

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9
Q

what is an 20 bond oligosacchride

A

maltosetriose

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10
Q

what bond is formed in maltosetriose

A

alpha 1-4 bonds

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11
Q

what is a monopolysacchride

A

starch

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12
Q

what are the bonds formed in starch

A

1,6 glycosidic bonds

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13
Q

what is unbranched starch with 1,4 glycosidic bonds called

A

amylose

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14
Q

what is branched starch with 1,4 + 1,6 glycosidic bonds called

A

amylopectin

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15
Q

what is glycogen made of and used for

A

alpha glucoses with amylose and amylopectin
storage molecules of glucose

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16
Q

what are 2 heteropolysacchride

A

dextran
cellulose

17
Q

what bonds are formed in dextran

A

alpha 1,3 + 1,6 bonds

18
Q

what is cellulose made of

A

stacks of beta glucoses

19
Q

what bonds are formed in cellulose

A

beta 1,4 bonds

20
Q

why do nucelophiles attack carbs

A

due to C=O group acting as an electrophile

21
Q

what is formed when the nucleophile in a carb reaction is H2O

A

aldehyde hydrate

22
Q

what is formed when the nucleophile in a carb reaction is OH

A

hemiacetal

23
Q

under intramolecular conditions what are hemiacetals able to form

A

cyclical hemiacetals

24
Q

what forms when 4,5 OH groups are used as nucelophiles

25
what forms when 5,6 OH groups are used as nucelophiles
pyranose
26
what type of reaction form hemiacetals
equillibruim reaction
27
how is glycogen able to store so much glucose
highly branched
28
what does a swiggly line mean on a molecule
the position of a functional group doesnt matter since reaction still happens
29
what % of amylose and amylopectin
amylose = 20% amylopectin = 80%
30
what is the use of less reducing ends
stability