Carbohydrates: Monosaccharides and Disaccharides

Overview of Carbohydrates

Monosaccharides

• Definition of Monosaccharide:

  • Monosaccharides are the simplest units of carbohydrates. They serve as the fundamental building blocks for larger carbohydrate molecules.

• Generic Formula:

  • The generic formula for a monosaccharide can be represented as CnH{2n}O_n where typically, for example, in a monosaccharide with three carbons:

  • C3H6O_3 indicating three carbons, six hydrogens, and three oxygens.

• Importance:

  • Monosaccharides are essential for cellular metabolism and are utilized in various biochemical pathways.

Disaccharides

• Definition of Disaccharide:

  • A disaccharide is a carbohydrate composed of two monosaccharides linked together through a glycosidic bond.

• Meaning of "Di":

  • The prefix "di-" refers to the number two. Therefore, disaccharides consist of two monosaccharide units.

• Examples of Disaccharides:

  • Sucrose, Lactose, and Maltose are common examples of disaccharides, each formed from specific monosaccharide combinations.

• Importance:

  • Disaccharides play a significant role in energy supply and are found in many plants and foods.