SSC
BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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nucleotides that store information
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monosaccharides that provide quick energy for the cell
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lipids that store energy and provide insulation
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proteins that provide the building blocks for the structural components of organisms
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Detailed explanation-1: -Nucleotides are composed of three parts: a nitrogenous base, a phosphate group and a sugar. The nitrogenous bases are of two types: purines and pyrimidines. The sugar is a ribose sugar or a deoxyribose sugar. Nucleotides are monomeric subunits that form DNA.
Detailed explanation-2: -DNA encodes information through the order, or sequence, of the nucleotides along each strand. Each base-A, C, T, or G-can be considered as a letter in a four-letter alphabet that spells out biological messages in the chemical structure of the DNA.
Detailed explanation-3: -Nucleotides are in particular essential for replication of DNA and transcription of RNA in rapidly dividing stages. Nucleotides are also essential in providing the cellular energy sources (ATP and GTP), and are involved in numerous other metabolic roles.