NURSING ANM AND GNM

NURSING EXAM QUESTIONS

BIOCHEMISTRY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A monosaccharide is a subunit of a:
A
nucleic acid
B
lipid
C
carbohydrate
D
protein
Explanation: 

Detailed explanation-1: -MONOSACCHARIDES. The monosaccharides (mono = one, saccharide = sugar) are the basic subunits of carbohydrates. They contain from 3 to 7 carbons and have the general formula of (CH2O)n where n ranges from 3 to 7 (5 or 6 being the most common).

Detailed explanation-2: -The subunits that make up carbohydrates are called monosaccharides, or simple sugars. Glucose is one example of a monosaccharide because glucose molecules can be linked together to form starch, a polysaccharide (or complex carbohydrate). Fructose is another example of a monosaccharide, typically found in fruits.

Detailed explanation-3: -Monosaccharides are the simplest carbohydrates; most of them are sugars. Monosaccharides may have between three and eight carbon atoms, but only those with five carbons (pentoses) and six carbons (hexoses) are common.

Detailed explanation-4: -Monosaccharides are comprised of a single simple sugar unit, glucose, fructose, or galactose, and they cannot be broken down into simple sugar units. These three monosaccharides are combined in various ways to make more complex carbohydrates.

Detailed explanation-5: -Disaccharides. Disaccharides are composed of two monosaccharide units linked together by a glycosidic bond. The most common glycosidic bonds connecting monosaccharide units are O-glycosidic bonds in which the oxygen from a hydroxyl group becomes linked to the carbonyl carbon.

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