Nucleic acid

Nucleotides are repeating units that form nucleic acids, consisting of phosphoric acid, a sugar molecule, and a nitrogenous base. The most common nucleic acids, DNA and RNA, are present in all cells and viruses.

What are nucleotides described as in the video?

• Building blocks of proteins

• Repeating units

• Single molecules

• Complex structures

Which of the following is NOT a component of a nucleotide?

• Nitrogenous base

• Sugar molecule

• Phosphoric acid

• Amino acid

What is the role of the sugar molecule in a nucleotide?

• It provides energy

• It acts as a fuel

• It forms the backbone

• It binds to proteins

Which nucleic acids are mentioned as the most common?

• DNA and RNA

• RNA and DNA polymerase

• RNA and ATP

• DNA and ATP

Where are DNA and RNA found according to the video?

• In the cytoplasm

• In bacteria only

• In all cells and viruses

• Only in the nucleus