Question

What are disaccharides, and what are they linked by? How does that link occur? Give three examples and what they're made of.

a) Double sugars; Linked by glycosidic bonds; Dehydration synthesis; Sucrose (glucose + fructose), Maltose (glucose + glucose), Lactose (glucose + galactose)
b) Single sugars; Linked by peptide bonds; Hydrolysis; Glucose, Fructose, Galactose
c) Branched sugars; Linked by ester bonds; Condensation; Cellulose, Starch, Glycogen
d) Complex sugars; Linked by covalent bonds; Oxidation; Ribose, Deoxyribose, Glucose

Answer 1

Disaccharides consist of two monosaccharides linked by glycosidic bonds formed via dehydration synthesis. Examples include sucrose, maltose, and lactose, important to human nutrition and broken down during digestion.

Step-by-step explanation:

Disaccharides are a type of carbohydrate that consist of two monosaccharides linked together. They are formed through a process known as dehydration synthesis, where a water molecule is removed to create a new bond called a glycosidic bond.

The three primary examples of disaccharides that are significant to human nutrition include sucrose (table sugar, composed of glucose + fructose), maltose (malt sugar, made of two glucose molecules), and lactose (milk sugar, composed of glucose + galactose).

These disaccharides cannot be directly utilized by the body but are broken down into their monosaccharide components via the process of hydrolysis in the digestive tract.