CELL STRUCTURES AND FUNCTION
CELL CYCLE
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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: -A DNA molecule consists of two long polynucleotide chains composed of four types of nucleotide subunits. Each of these chains is known as a DNA chain, or a DNA strand. Hydrogen bonds between the base portions of the nucleotides hold the two chains together (Figure 4-3).
Detailed explanation-2: -Nucleotides are the constituents of nucleic acids (DNA, RNA), which store and transmit genetic information. They also act as carriers of chemical energy in cells, as enzyme cofactors, and as secondary messengers. Nucleotides consist of a nitrogenous base, a five-carbon sugar, and a phosphate group.
Detailed explanation-3: -Bases are the part of DNA that stores information and gives DNA the ability to encode phenotype, a person’s visible traits. Adenine and guanine are purine bases. These are structures composed of a 5-sided and 6-sided ring.
Detailed explanation-4: -DNA is made of smaller subunits called nucleotides. Each nucleotide consists of three components: a five-carbon sugar called deoxyribose, a phosphate group, and a nitrogenous base.
Detailed explanation-5: -First, information stored in the DNA molecule must be copied, with minimal errors, every time a cell divides. This ensures that both daughter cells inherit the complete set of genetic information from the parent cell.