Monosaccharides vs. Disaccharides
Key Differences
Comparison Chart
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Considered As
Water Solubility
Number of Monomers
Chemical Structure
General Formula
Significance
Molecular Weight
Foods as Examples
Monosaccharides and Disaccharides Definitions
Monosaccharides
Disaccharides
Monosaccharides
Monosaccharides vs. Disaccharides
Monosaccharides are considered as only sugar molecule that performs as building blocks, whereas disaccharides are considered as molecules of sugar made up of monosaccharides. Monosaccharides are usually water-soluble molecules, while most of the disaccharides are usually soluble in water. Monosaccharides are sweet; on the other hand, on the contrary disaccharides also sweet in taste.
Monosaccharides are known as reducing sugars, while most of the disaccharides are act as reducing sugars. Monosaccharides contain a single monomer; on the flip side, disaccharides are usually consisting of two monomers. The chemical structure of monosaccharides consists of linear, unbranched, or simple structure; conversely, disaccharides contain linear, branched or unbranched, and simple chemical structure.
The chemical rings in monosaccharides are a single ring structure; on the contrary, disaccharides contain two ring structures. The general formula of monosaccharides is (CH2O) n, where n could be 3, 5 or 6; on the other hand, the general formula of disaccharides is (CH2O) n, where n could be from 2 to 10. Monosaccharides are the main energy source having energy with four calories per gram; on the contrary, disaccharides are used by plants to transport molecules like fructose, lactose, and glucose between cells of plants.
Monosaccharides contain a comparatively low molecular weight as compare to other sugar molecules; on the flip side, disaccharides contain a comparatively larger molecular weight as compare to monosaccharides. Monosaccharides consist of food as an example include honey, fruits, dairy products, beans, etc., whereas food use an example in disaccharides are table sugar or disaccharides are found in beetroot.
What are Monosaccharides?
Monosaccharides consider as molecules of single sugar that perform as the basic elements for polysaccharides and disaccharides. They are the most naive arrangement of carbohydrates. Monosaccharides are made up of C, H, and O atoms in their molecules.
(CH2O) n is the general or common formula of monosaccharides where n relates to units could be 3, 5, or 6. These are mostly originating in ketone form or aldehyde from their carbonyl structure, and monosaccharides particularly contain a carbonyl group. Monosaccharides having aldehyde group are usually called as aldoses and monosaccharides containing ketone groups are called as ketoses.
Almost all monosaccharides are soluble in water and have a sweet taste and become colorless or faded when soluble in water. The chemical structure of monosaccharides consists of linear, unbranched, or simple structures. Examples of monosaccharides are glucose, glyceraldehyde, pentose, and Erythrose.
What are Disaccharides?
Disaccharides are referred to as sugar molecules that are made up of two monosaccharides. Hence, every molecule of disaccharide formed of two chemical rings. The bond or link present among two monosaccharides is known as a glycosidic bond.
Disaccharides are also known as simple sugars. All disaccharides are dissolved in water and colorless or dull when soluble in water. Some of the disaccharides could sweet in taste, but some not act as sweet.
Significance of disaccharides Is that they are used by plants to transport molecules like fructose, lactose, and glucose between cells of plants. Various examples are sucrose, lactose, and maltose. Food uses an example in disaccharides are table sugar, found in beetroot, or add in food for sweetness.
Types
- Reducing Sugars: Could perform as a reducing agent
- Non-Reducing Sugars: Cannot perform as a reducing agent
Classification
- Homo-Polysaccharides: Composed of only one type of monosaccharides
- Hetero-Polysaccharides: Composed of two or more types of monosaccharides
