Dictionary > Triose

Triose

Definition
noun, plural: trioses
A three-carbon monosaccharide
Supplement
Monosaccharides are the simplest form of carbohydrates. They are classified according to the number of carbon atoms in a monosaccharide. In particular, a triose is a monosaccharide with three carbon atoms.
Two naturally occurring trioses are aldotriose (glyceraldehyde) and ketotriose (dihydroxyacetone). These trioses are important metabolites in cellular respiration. For instance, glyceraldehyde-3-phosphate (C3H7O6P) is a metabolites triose that serves as an intermediate in different metabolic pathways. It is produced together with dihydroxyacetone phosphate from the breaking down of β-D-fructose-1,6-bisphosphate during glycolysis by the action of fructose-bisphosphate aldolase.
Monosaccharides may also be classified based on the type of carbonyl group they contain. An aldose is a monosaccharide that contains an aldehyde group (-CHO) whereas a ketose is one that contains a ketone (C=O). Thus, an aldotriose is a triose with an aldehyde group. The carbonyl group is located at the end of the chain. A ketotriose, in contrast, is a triose with a keto group. The only ketotriose is dihydroxyacetone.
Word origin: tri– (“three”) + –ose (relating to sugars)
See also:

Related term(s):


You will also like...

takahē
Takahē (Porphyrio hochstetteri)

Meet the colorful takahē, an extremely rare flightless bird. Find out more about its unique features and why they matte..

Neural Control Mechanisms
Neural Control Mechanisms

Neurons generate electric signals that they pass along to the other neurons or target tissues. In this tutorial, you wil..

Gene Pool and Speciation
The Gene Pool and Population Genetics

According to Charles Darwin's theory of natural selection, preferable genes are favored by nature in the gene pool, and ..

"Opabinia regalis"
The Evolutionary Development of Multicellular Organisms

Multicellular organisms evolved. The first ones were likely in the form of sponges. Multicellularity led to the evolutio..

Developmental Biology
Developmental Biology

Developmental biology is a biological science that is primarily concerned with how a living thing grows and attains matu..

Cell Biology
Cell Biology

The cell is defined as the fundamental, functional unit of life. Some organisms are comprised of only one cell whereas o..