NURSING EXAM QUESTIONS
BIOCHEMISTRY
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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chitin
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lactose
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starch
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glycogen
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Detailed explanation-1: -Sucrose is not an example of polysaccharides. Sucrose, commonly named table sugar or sugar, is cane and beet sugar. The molecule is a disaccharide; combination of the monosaccharides glucose and fructose with the formula C12H22O11.
Detailed explanation-2: -Lactose is a disaccharide comprised of glucose linked to galactose. Disaccharides are sugars made of two carbohydrate residues. Lactose is therefore not a polysaccharide because the biochemical definition of a polysaccharide states that polysaccharides must possess at least three carbohydrate residues linked together.
Detailed explanation-3: -Answer and Explanation: The correct answer is D). Chitin, glycogen, and cellulose are all polysaccharides. However, Lipids are not polysaccharides.
Detailed explanation-4: -Lactose and maltose are disaccharides that are made up of glucose.
Detailed explanation-5: -Lactose, often called milk sugar (Latin, lac, milk), is a disaccharide found in the milk of many mammals, including humans and cows.