NURSING ANM AND GNM

NURSING EXAM QUESTIONS

BIOCHEMISTRY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A disaccharide is a carbohydrate that contains ____
A
3 or more sugars
B
one sugar
C
two sugars
D
fatty acid chains
Explanation: 

Detailed explanation-1: -A disaccharide (also called a double sugar ) is the sugar formed when two monosaccharides (simple sugars) are joined by glycosidic linkage . Like monosaccharides, disaccharides are soluble in water. Three common examples are sucrose, lactose, and maltose.

Detailed explanation-2: -disaccharide, also called double sugar, any substance that is composed of two molecules of simple sugars (monosaccharides) linked to each other. Disaccharides are crystalline water-soluble compounds.

Detailed explanation-3: -Sucrose: A disaccharide composed of glucose and fructose, sucrose is also known as table sugar.

Detailed explanation-4: -Maltose, another common disaccharide, is condensed from two glucose molecules.

Detailed explanation-5: -Disaccharides form when two monosaccharides undergo a dehydration reaction (a condensation reaction); they are held together by a covalent bond. Sucrose (table sugar) is the most common disaccharide, which is composed of the monomers glucose and fructose.

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