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Multiple Choice
Which sugar is a component of RNA?
A
Galactose
B
Ribose
C
Fructose
D
Glucose
Verified step by step guidance
1
Understand the structure of RNA: RNA, or ribonucleic acid, is a molecule essential for various biological roles, including coding, decoding, regulation, and expression of genes.
Identify the components of RNA: RNA is composed of a sugar-phosphate backbone and nitrogenous bases. The sugar in RNA is crucial for its structure and function.
Recognize the sugar in RNA: The sugar component of RNA is ribose, a pentose sugar, which is different from the deoxyribose sugar found in DNA.
Differentiate ribose from other sugars: Ribose is a five-carbon sugar (C₅H₁₀O₅) that is distinct from other common sugars like glucose, fructose, and galactose, which are hexoses (six-carbon sugars).
Conclude the identification: Based on the structure and function of RNA, ribose is the correct sugar component, as it forms the backbone of RNA molecules.