Sugars Flashcards
almost all carbohydrates in natures are in the —- configuration
D vs L
D
aldose vs ketose
fischer projections
aldose vs ketose
haworth projection
what indicates whether a sugar is D or L
whether the bottom OH on a fischer projection is Left (L) or right (D)
which carbohydrate is the D vs L congifuration based on?
glyceraldehye
when converting from fischer to haworth projections…
groups on the RIGHT go DOWN
groups on the LEFT go UP
list the 5 most tested sugars
ribose
glucose
mannose
galactose
fructose
which of the 5 sugars are aldoses?
ribose
glucose
mannose
galactose
not fructose
which of the 5 sugars are ketoses?
fructose
alpha vs beta anomers
tetroses
carbohydrates with 4 carbons
pentoses
carbohydrates with 5 carbons
hexoses
carbohydrates with 6 carbons
which of the 5 sugars are hexoses?
fructose
glucose
galactose
mannose
not ribose
which of the 5 sugars are pentoses?
ribose
Which sugar is this
these are the 2 anomeris forms (alpha and beta)
D-ribose
5 carbon pentose; aldose
Which sugar is this?
note: this is the beta form
D- glucose
6 carbon hexose; aldose
Which sugar is this?
note: one is alpha one is beta
D-mannose
6 carbon hexose; aldose
Which sugar is this?
D-galactose
6 carbon hexose; aldose
Which sugar is this?
left is alpha, right is beta
D-fructose
6 carbon hexose; ketose
lactose
galactose + glucose joined by a β-1,4-glycosidic linkage
sucrose
a disaccharide of fructose and glucose
maltose
two units of glucose joined with an α-bond
