Function of Nucleic Acids Quiz
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Questions and Answers

What is the function of nucleic acids?

  • Breaking down waste materials
  • Storing and expressing genetic information (correct)
  • Producing energy for the cell
  • Facilitating cell communication

What type of nucleic acid is involved in protein synthesis?

  • Double-stranded RNA
  • DNA
  • RNA (correct)
  • Single-stranded DNA

How are nucleic acids formed?

  • From amino acids
  • By oxidation of carbohydrates
  • By polymerization of nucleotides (correct)
  • By condensation of lipids

What are the building blocks of nucleic acids?

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

Which part of a nucleotide contains a phosphorus atom?

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

What is the main function of RNA in the body?

<p>Transfers genetic information (B)</p> Signup and view all the answers

Which of the following nucleotides is unique to RNA?

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

What is the structure of a nucleotide composed of?

<p>A pentose sugar attached to a nitrogen base (D)</p> Signup and view all the answers

Which scientist discovered the chemical portions of nucleic acids such as cytosine, guanine, uracil, and thymine?

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

What type of bonds help single-stranded RNA molecules form three-dimensional structures?

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

In DNA, how many hydrogen bonds are formed between adenine and thymine?

<p>Two (A)</p> Signup and view all the answers

Which nitrogenous base pairs with cytosine in DNA through three hydrogen bonds?

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

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

<p>Ester and peptide bonds (C)</p> Signup and view all the answers

Which molecule generates energy for cellular processes by providing the cell with energy in living cells?

<p>Adenosine triphosphate (ATP) (A)</p> Signup and view all the answers

What kind of RNA plays a significant part in protein synthesis and controls the expression of genetic information stored in DNA as proteins?

<p>Transfer RNA (tRNA) (D)</p> Signup and view all the answers

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