Chp 6—Carbohydrates Flashcards

1
Q

draw
D-ribose
a-D-ribofuranose

A
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2
Q
A

ribose

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3
Q

draw
D-glucose
a-D-glucopyranose

A
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4
Q
A

glucose

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5
Q

draw
D-galactose
a-D-galactopyranose

A
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6
Q
A

galactose

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7
Q

draw
D-fructose
a-D-fructofuranose

A
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8
Q
A

fructose

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9
Q

draw
D-ribulose
a-D-ribulofuranose

A
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10
Q
A

ribulose

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11
Q

draw
D-mannose
a-D-mannopyranose

A
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12
Q
A

mannose

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13
Q

a-D-glucopyranosyl-(1->4)-a-D-glucopyranose)

name

draw

A

maltose

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14
Q

a-D-glucopyranosyl-(1->1)-a-D-glucopyranose

name

draw

A

trehalose

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15
Q

a-D-glucopyranosyl-(1->2)-B-D-fructofuranose

name

draw

A

sucrose

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16
Q

B-D-galactopyranosyl-(1->4)-D-glucopyranose

name

draw

A

lactose

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17
Q

a-D-glucopyranosyl-(1->6)-a-D-glucopyranose

name

draw

A

isomaltose

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18
Q

starch structure

A
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19
Q

cellulose structure

A
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20
Q

3 C carb

A

triose

21
Q

4 C carb

A

tetrose

22
Q

5 C carb

A

pentose

23
Q

6 C carb

A

hexose

24
Q

sugar L configuation

A

bottom OH on the left

25
Q

sugar D configuration

A

bottom OH on the right

26
Q

anomers

A

alpha and beta forms of haworth projection

27
Q

alpha haworth

A

lowest OH faces down

28
Q

beta haworth

A

lowest OH faces up

29
Q

5 mem ring

A

furanose

30
Q

6 mem ring

A

pyranose

31
Q

for D sugars, CH2OH is pointed…

A

up on C4 or C5

32
Q

bottom OH on fischer becomes what on haworth?

A

ether oxygen
H goes to the alpha/beta OH

33
Q

carbonyl O on fischer becomes what on haworth?

A

O of the OH

34
Q

ribose classification

A

aldopentose

35
Q

glucose classification

A

aldohexose

36
Q

galactose classification

A

aldohexose

37
Q

fructose classification

A

ketohexose

38
Q

ribulose classifcation

A

ketopentose

39
Q

mannose classification

A

aldohexose

40
Q

disaccharide nomenclature

A

sugar-yl-(#C –> #C)-sugar

41
Q

O linked glycosylation

A

on serione, threonine

42
Q

N linked glycosylation

A

on asparagine

43
Q

application of glycosylation

A

drug masking

44
Q

2 types of polysaccharide

A

hetero
homo

45
Q

examples of polysaccharides

A

starch
cellulose
peptidoglycan
chitin
glycogen

46
Q

present on reducing sugars

A

hemiacetal group
OH on same C attached to ether O

47
Q

special about reducing sugars

A

can be trapped in fischer projection form

48
Q

3 tests for reducing sugars

A

Benedicts test
Fehling’s test
Tollens test

49
Q

intensity of reducing sugar positive given by…..

A

number of hemiacetals exposed