OBJECTIVE LIFE SCIENCE
CELL 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 and structural components of organisms
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Detailed explanation-1: -Nucleotides are composed of three subunit molecules: a nucleobase, a five-carbon sugar (ribose or deoxyribose), and a phosphate group consisting of one to three phosphates. The four nucleobases in DNA are guanine, adenine, cytosine and thymine; in RNA, uracil is used in place of thymine.
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: -The part of the nucleotide that stores genetic information is A. nitrogen base. There are five main bases namely adenine, guanine, cytosine, thymine, and uracil. The sequence of these bases in DNA or RNA determines the genetic information contained in the molecule.
Detailed explanation-4: -Nucleotides have a central role in the physiology of organisms as building blocks of nucleic acids, storage of chemical energy, carriers of activated metabolites for biosynthesis, structural moieties of coenzymes, and metabolic regulators.