What is the primary role of nucleic acids like DNA and RNA within a cell?

• Storing energy

• Forming cell membranes

• Synthesizing proteins

• Catalyzing biochemical reactions

Which three components make up a single nucleotide, the basic building block of nucleic acids?

• Amino acid, sugar, phosphate

• Fatty acid, glycerol, nitrogenous base

• Phosphate group, pentose sugar, nitrogenous base

• Glucose, fructose, galactose

Which nitrogenous base is found in RNA but is replaced by Thymine in DNA?

• Adenine

• Guanine

• Cytosine

• Uracil

What type of bond is responsible for connecting complementary nitrogenous bases in the double helix structure of DNA?

• Covalent bonds

• Ionic bonds

• Hydrogen bonds

• Peptide bonds