NURSING EXAM QUESTIONS
BIOCHEMISTRY
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Ribose sugars are found in
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DNA
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RNA
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Proteins
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None of the above
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Explanation:
Detailed explanation-1: -ribose, also called D-ribose, five-carbon sugar found in RNA (ribonucleic acid), where it alternates with phosphate groups to form the “backbone ‘’ of the RNA polymer and binds to nitrogenous bases.
Detailed explanation-2: -Both DNA and RNA are built with a sugar backbone, but whereas the sugar in DNA is called deoxyribose (left in image), the sugar in RNA is called simply ribose (right in image).
Detailed explanation-3: -Ribonucleotides consist of a ribose sugar, phosphoric acid, and a nitrogenous base. An example of a ribonucleotide is an ATP (adenosine triphosphate). UTP, GTP, and CTP are other ribonucleotides found in RNA.
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