Question

Ribose sugar is present in
A. RNA polymerase, RNA and ATP
B. RNA only
C. RNA polymerase and ATP
D. RNA and ATP

Answer 1

The 5-carbon sugar present in RNA (ribonucleic acid) is known as ribose sugar. Ribose sugar is a type of simple sugar that naturally occurs in the form of ribonucleotides.

Complete answer: RNA consists of a ribose sugar, which is a monosaccharide and is a carbon sugar, whereas DNA consists of deoxyribose sugar which, via a glycosidic bond, is connected to a nitrogenous base at the first carbon. It is pentose sugar. The DNA molecule consists of two polynucleotide chains that coil around each other, forming a double helix that carries genetic instructions of all organisms and viruses to work, evolve, grow and reproduce. Each nucleotide is made up of four nucleobases containing nitrogen, including the sugar and phosphate groups of cytosine, guanine, adenine, and thymine. These nucleotides are joined together by covalent bonds, known as phosphodiester bonds, resulting in an alternating backbone of sugar-phosphate. In order to create double-stranded DNA, the nitrogen bases are bound together with hydrogen bonds and the complementary nitrogen bases are divided into two classes, which are pyrimidines and purines.
Nucleic acids are nucleotide polymers. Ribonucleic (RNA) acids are ribonucleotide polymers. 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.
Hence, the correct answer is option D.

Note: Ribose occurs naturally and in the production of energy, which acts as a fuel for cells. RNA are of three types mainly; rRNA, tRNA and mRNA. mRNA is a single-stranded structure that plays an important role in translation.