BioScience Dictionary

A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | Ot.

Found Disaccharide 13 times.

Displaying results 1 to 10.

1. Chitinolytic
Having to do with an enzyme which converts chitin , a polysaccharide that forms the hard, outer shell of arthropods (insects, spiders, crustaceas, etc.) and the cell walls of fungi and some algae , into chitobiose , which is a disaccharide secreted by such things as spiders and some plants.

2. Chitobiose
A disaccharide of two molecules of N-acetyl-D-glucosamine. The substance is secreted by organisms such as spiders and some plants.

3. Disaccharide
A sugar such as sucrose , which is made up of two monosaccharide s: one glucose molecule and one fructose molecule.

4. Disaccharides
1.Sugars made up of two monosaccharides held together by a covalent bond ; e.g., sucrose and lactose.2. Type of sugar (saccharide) composed of two sugar molecules bonded together with an ester ( covalent ) bond examples include sucrose, maltose, and lactose.

5. Gentiobiose (glucopyranosyl-D-glucose)
A disaccharide sugar molecule with the chemical formula C12H22O11 which is found naturally in plants. It can be broken into two D- glucose molecules under a hydrolysis reaction.

6. Glycosaminoglycan (GAG)
* A macromolecule found on the surface of eukaryotic cell s which is thought to play a role in the cell's recognition of other cells or of a substrate . It consists of a network of long, branched chains made up of repeating units of disaccharide s which contain amino group s. * A protein component of the capsid of a retrovirus which can act as group-specific antigen s to the host .

7. Hyaluronic acid
A glycosaminoglycan (macromolecule composed of repeating units of disaccharide s) where the disaccharide repeating unit consists of the sugar s glucuronic acid and N-acetylglucosamine.

8. Lactase (invertase)
An enzyme which cuts the disaccharide lactose into its component monosaccharide s glucose and galactose . The components, immediately upon being cut apart from each other by the enzyme, invert into their opposite isomers. Lactose intolerance is the result of not enough lactase (invertase) in the body.

9. Lactose (lactin, milk sugar)
A type of disaccharide which is composed of the monosaccharide s galactose and glucose linked together. It has the chemical formula of C12H22O11. It is found in dairy products.

10. Lactose intolerance
Lactose intolerance is the inability to digest lactose (a disaccharide of glucose and galactose ). The digestion of lactose requires the enzyme lactase. Undigested lactose causes two major problems: * fermentation of lactose by intestinal bacteria produces gas and organic acid * lactose causes an osmotic diarrhea in the large bowel

View web definitions »

Learn more about Disaccharide »