Monosaccharides are the most basic unit of carbohydrates. They are the simplest form of sugar and are usually colorless, water-soluble, crystal solids.... with 4 carbon
Carbon
Carbon is a chemical element with chemical symbol C and atomic number 6. As a member of group 14 on the periodic table, it is nonmetallic and tetravalence?making four electrons available to form covalent bond chemical bonds.... atoms. They either have an aldehyde
Aldehyde
An aldehyde is an organic compound containing a terminal carbonyl group. This functional group, which consists of a carbon atom bonded to a hydrogen atom and double bond to an oxygen atom , is called the aldehyde group.... functional group
Functional group
In organic chemistry, functional groups are specific groups of atoms within molecules that are responsible for the characteristic chemical reactions of those molecules.... in position 1 (aldotetroses) or a ketone
Ketone
In organic chemistry, a ketone is a type of organic compound which contains a carbonyl group bonded to two other carbon atoms in the form:Neither of the substituents R1 and R2 may be equal to hydrogen .... functional group in position 2 (ketotetroses).
Monosaccharides are the most basic unit of carbohydrates. They are the simplest form of sugar and are usually colorless, water-soluble, crystal solids.... with 4 carbon
Carbon
Carbon is a chemical element with chemical symbol C and atomic number 6. As a member of group 14 on the periodic table, it is nonmetallic and tetravalence?making four electrons available to form covalent bond chemical bonds.... atoms. They either have an aldehyde
Aldehyde
An aldehyde is an organic compound containing a terminal carbonyl group. This functional group, which consists of a carbon atom bonded to a hydrogen atom and double bond to an oxygen atom , is called the aldehyde group.... functional group
Functional group
In organic chemistry, functional groups are specific groups of atoms within molecules that are responsible for the characteristic chemical reactions of those molecules.... in position 1 (aldotetroses) or a ketone
Ketone
In organic chemistry, a ketone is a type of organic compound which contains a carbonyl group bonded to two other carbon atoms in the form:Neither of the substituents R1 and R2 may be equal to hydrogen .... functional group in position 2 (ketotetroses).
The aldotetroses have two chiralatrial centres ("asymmetric carbon atoms") and so 4 different stereoisomers are possible.
The naturally occurring aldotetroses are
D-Erythrose,
D-Threose.
The 2 D-aldotetroses are
CH=OCH=O
| |
HC-OH HO-CH
| |
HC-OH HC-OH
| |
CH2OH CH2OH
D-Erythrose
Erythrose
Erythrose is a tetrose carbohydrate with chemical formula Carbon4Hydrogen8Oxygen4. It has one aldehyde group and so is part of the aldose family. The natural isomer is D-erythrose.... D-Threose
Threose
Threose is a tetrose carbohydrate with chemical formula 484. It has one aldehyde group and so is part of the aldose family. It exists in both D and L stereoisomers....
The ketotetroses have one chiral centre and therefore two possible stereoisomers: Erythrulose
Erythrulose
D-Erythrulose is a tetrose carbohydrate with the chemical formula Carbon4Hydrogen8Oxygen4. It has one ketone group and so is part of the ketose family.... (L- and D-form).
The D-ketotetrose is
CH2OH
|
C=O
|
HC-OH
|
CH2OH
D-Erythrulose
Erythrulose
D-Erythrulose is a tetrose carbohydrate with the chemical formula Carbon4Hydrogen8Oxygen4. It has one ketone group and so is part of the ketose family....
The only naturally occurring ketotetrose is D-erythrulose.
A triose is a monosaccharide containing three carbon atoms. There are only two trioses, an aldotriose and a ketotriose . Trioses are important in Cellular respiration....
A pentose is a monosaccharide with five carbon atoms.They either have an aldehyde functional group in position 1 , or a ketone functional group in position 2 ....
In organic chemistry, a hexose is a monosaccharide with six carbon atoms, having the chemical formula C6H12O6. Hexoses are classified by functional group, with aldohexoses having an aldehyde at position 1, and ketohexoses having a ketone at position 2....
A heptose is a monosaccharide with seven carbon atoms.They either have an aldehyde functional group in position 1 , or a ketone functional group in position 2 ....
