Nucleic acids

Descripción

A-Level Biology Test sobre Nucleic acids, creado por sophie_burke el 24/03/2014.
sophie_burke
Test por sophie_burke, actualizado hace más de 1 año
sophie_burke
Creado por sophie_burke hace más de 10 años
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Resumen del Recurso

Pregunta 1

Pregunta
What are nucleic acids?
Respuesta
  • The information molecules of the cell
  • Chains of amino acids
  • Mutated cells

Pregunta 2

Pregunta
How are nucleic acids stored?
Respuesta
  • They are unzipped and stored in the ribosomes
  • They are supercoiled
  • They take the form of a code in molecules of DNA

Pregunta 3

Pregunta
What is a mononucleotide made up of?
Respuesta
  • Pentose sugar, a nitrogen containing base, phosphoric acid
  • Triphosphate, nitrogen containing base, ligase
  • Pentose sugar, an oxygen containing base, phosphoric acid

Pregunta 4

Pregunta
The Purines bases have two nitrogen containing rings
Respuesta
  • True
  • False

Pregunta 5

Pregunta
How many nitrogen rings do pyrimidine's have?
Respuesta
  • 1
  • 2
  • 3

Pregunta 6

Pregunta
Which bases are pyramidines and which bases are purines?
Respuesta
  • Pyramidines: Cytosine and Guanine Purines: Adenine and Thymine
  • Pyramidines: Cytosine and Thymine Purine: Adenine and Guanine
  • Pyramidines: Adenine and Guanine Pyramidines: Cytosine and Thymine

Pregunta 7

Pregunta
A water molecule is added, not removed, during condensation reactions
Respuesta
  • True
  • False

Pregunta 8

Pregunta
Which bond is formed between mononucleotides during a condensation reaction
Respuesta
  • Hydrogen
  • Covalent
  • Phosphodiester
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