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A-Level Biology Quiz on Nucleic acids, created by sophie_burke on 24/03/2014.

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Nucleic acids

Question 1 of 8

1

What are nucleic acids?

Select one of the following:

  • The information molecules of the cell

  • Chains of amino acids

  • Mutated cells

Explanation

Question 2 of 8

1

How are nucleic acids stored?

Select one of the following:

  • They are unzipped and stored in the ribosomes

  • They are supercoiled

  • They take the form of a code in molecules of DNA

Explanation

Question 3 of 8

1

What is a mononucleotide made up of?

Select one of the following:

  • Pentose sugar, a nitrogen containing base, phosphoric acid

  • Triphosphate, nitrogen containing base, ligase

  • Pentose sugar, an oxygen containing base, phosphoric acid

Explanation

Question 4 of 8

1

The Purines bases have two nitrogen containing rings

Select one of the following:

  • True
  • False

Explanation

Question 5 of 8

1

How many nitrogen rings do pyrimidine's have?

Select one of the following:

  • 1

  • 2

  • 3

Explanation

Question 6 of 8

1

Which bases are pyramidines and which bases are purines?

Select one of the following:

  • Pyramidines: Cytosine and Guanine
    Purines: Adenine and Thymine

  • Pyramidines: Cytosine and Thymine
    Purine: Adenine and Guanine

  • Pyramidines: Adenine and Guanine
    Pyramidines: Cytosine and Thymine

Explanation

Question 7 of 8

1

A water molecule is added, not removed, during condensation reactions

Select one of the following:

  • True
  • False

Explanation

Question 8 of 8

1

Which bond is formed between mononucleotides during a condensation reaction

Select one of the following:

  • Hydrogen

  • Covalent

  • Phosphodiester

Explanation

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