Function of Nucleic Acids

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Questions and Answers

What is the main function of nucleic acids?

  • Structural support
  • Energy storage
  • Enzyme synthesis
  • Genetic information storage (correct)

Which type of nucleic acid is involved in protein synthesis?

  • Messenger nucleic acid (MNA)
  • Deoxyribonucleic acid (DNA)
  • Ribonucleic acid (RNA) (correct)
  • Protein nucleic acid (PNA)

What are the two forms of nucleic acids found in nature?

  • Phosphate and Pentose
  • DNA and RNA (correct)
  • Uracil and Cytosine
  • Adenosine and Guanosine

Which component makes up the backbone of a nucleotide?

<p>Phosphate group (B)</p> Signup and view all the answers

What is the role of a pentose molecule in nucleic acids?

<p>Form the backbone (D)</p> Signup and view all the answers

What is the key structural difference between ribose and deoxyribose?

<p>Presence of a hydroxyl group on the third carbon atom in deoxyribose (D)</p> Signup and view all the answers

What type of bonds hold the pentose sugar molecule, phosphorus, and nitrogen molecules in nucleic acids?

<p>Glycosidic and ester bonds (A)</p> Signup and view all the answers

Which nitrogenous base pairs with guanine in DNA?

<p>Cytosine (C)</p> Signup and view all the answers

What is the function of RNA in protein synthesis?

<p>Decodes information stored in DNA to form new proteins (C)</p> Signup and view all the answers

How is adenosine triphosphate (ATP) involved in cellular energy production?

<p>ATP generates energy for cellular processes through high-energy bonds (B)</p> Signup and view all the answers

What is the primary function of RNA in the cell?

<p>Transferring genetic information to synthesize proteins (D)</p> Signup and view all the answers

Which of the following molecules is unique to DNA and not found in RNA?

<p>Thymine (C)</p> Signup and view all the answers

What is the role of ATP in cellular processes?

<p>Providing energy for processes like exocytosis and endocytosis (C)</p> Signup and view all the answers

Which of the following best describes the structure of nucleic acids?

<p>Elongated chains made of identical nucleotides, each consisting of a nitrogen base, a pentose sugar, and a phosphate group (A)</p> Signup and view all the answers

What is the significance of the three-dimensional structure of RNA?

<p>It determines the unique function of cells, including enzyme degradation (D)</p> Signup and view all the answers

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