4 Carbs Flashcards
Are compounds containing C, H, and O
These are biomolecules that would contain carbon,
hydrogen and oxygen
Carbohydrates
Contain C=O and –OH functional groups
Carbonyl contains carbon and oxygen that is connected
by a double bond
In hydroxyl group, we have the presence oxygen
covalently bonded to a hydrogen atom
Carbohydrates
Some are reducing substances
Reducing substances: can reduce other compounds
and in order for a certain carbohydrate to be a reducing
substance, it should contain an active aldehyde and
ketone group
Examples: glucose, maltose, fructose, lactose, and
galactose
Non-reducing substances: do not have active an
aldehyde and ketone groups which cannot reduce
other compounds
Example is the most common non-reducing
substance, sucrose or table sugar
Carbohydrates
can reduce other compounds
and in order for a certain carbohydrate to be a reducing
substance, it should contain an active aldehyde and
ketone group
Reducing substances
do not have active an
aldehyde and ketone groups which cannot reduce
other compounds
Non-reducing substances
do not have active an
aldehyde and ketone groups which cannot reduce
other compounds
Non-reducing substances
primary source of energy for humans
Glucose
contain three carbons
Trioses
contain four carbons
Tetrose
contain five carbons
Pentoses
contain six carbons
Hexoses
would have a carbonyl group located on the
terminal part
Aldose
would have a carbonyl group located in the
middle and is connected to other carbon atoms
Ketose
glucose, fructose, and galactose
simple sugar that cannot be
hydrolyzed into a simpler form
Monosaccharides
maltose, lactose, and sucrose
Disaccharides
form from the joining of two
carbohydrates molecules or two monosaccharides
joined by glycosidic linkage
Disaccharides
raffinose and stachyose
Oligosaccharides
(Oligosaccharides)
consists of 1 glucose, 1 fructose, 1 galactose
(trisaccharide)
Raffinose
(Oligosaccharides)
2 galactose, 1 fructose, 1
glucose
Stachyose (tetrasaccharide)
These are found in sugar bits (malasses) and in whole
grains
Oligosaccharides
starch and glycogen
Polysaccharides
contain more than 10 monosaccharides
Polysaccharides
Structural arrangement of atoms in a given molecule
THE STEREOCHEMISTRY OF THE COMPOUND
dextrorotatory (hydroxyl group is located
on the right of fisher projection) / projected on
carbon 5
D series (prefix D-)