Which two types of nucleic acids are vital for cellular functions?

• A. Proteins and carbohydrates
• B. Dna and rna
• C. Fats and oils
• D. Sugars and starches

Answer: (B)

DNA and RNA are essential for cellular functions because they play critical roles in the storage and expression of genetic information.

DNA, or deoxyribonucleic acid, serves as the primary genetic material in most living organisms. It carries the instructions needed for the development, functioning, growth, and reproduction of all known life forms. DNA is organized into structures known chromosomes, and its sequence of nucleotides encodes the information necessary to produce proteins, which are crucial for carrying out various cellular processes.

RNA, or ribonucleic acid, is primarily involved in the synthesis of proteins. It acts as a messenger between DNA and ribosomes, where proteins are made. In addition to its role as messenger RNA (mRNA), RNA can have various other functions, such as catalyzing biological reactions (as seen in ribozymes) and regulating gene expression.

Together, DNA and RNA enable the transfer of genetic information and the regulation of cellular activities, making them indispensable for life.