Multiple Choice
What is the name of the sugar acid produced when D-ribose is oxidized at the aldehyde group?
102
views
1. Introduction to Biochemistry
Nucleic Acids
Multiple Choice
Which of the following best describes the primary functions of nucleic acids in biological systems?
A
They serve as the main source of cellular energy.
B
They store and transmit genetic information.
C
They provide structural support to cell membranes.
D
They catalyze the majority of metabolic reactions.
Verified step by step guidance1
Understand the role of nucleic acids in biological systems: Nucleic acids, such as DNA and RNA, are macromolecules responsible for storing and transmitting genetic information.
Differentiate nucleic acids from other macromolecules: Unlike carbohydrates (main source of energy), lipids (structural support for membranes), and proteins (catalysts for metabolic reactions), nucleic acids have a unique role in heredity and gene expression.
Focus on the key functions of DNA and RNA: DNA stores genetic information in the form of sequences of nucleotides, while RNA transmits this information to facilitate protein synthesis.
Eliminate incorrect options: Cellular energy is primarily derived from ATP (a nucleotide, not a nucleic acid), structural support is provided by lipids and proteins, and metabolic reactions are catalyzed by enzymes (proteins).
Conclude that the correct answer is: 'They store and transmit genetic information,' as this is the primary function of nucleic acids in biological systems.
Related Videos
Related Practice
