The Nitrogen Cycle- Biol 4

Descripción

A Levels Biology Test sobre The Nitrogen Cycle- Biol 4, creado por elizabethc2114 el 07/01/2015.
elizabethc2114
Test por elizabethc2114, actualizado hace más de 1 año
elizabethc2114
Creado por elizabethc2114 hace casi 10 años
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Resumen del Recurso

Pregunta 1

Pregunta
Which stage of the nitrogen cycle converts nitrogen gas into nitrogen-containing compounds?
Respuesta
  • Ammonification
  • Nitrification
  • Nitrogen-fixation
  • Denitrification

Pregunta 2

Pregunta
Which stage of the nitrogen cycle produces ammonia from organic ammonium-containing compounds?
Respuesta
  • Ammonification
  • Nitrification
  • Nitrogen-fixation
  • Denitrification

Pregunta 3

Pregunta
Which stage of the nitrogen cycle is involved in the conversion of ammonium ions to nitrate ions?
Respuesta
  • Ammonification
  • Nitrification
  • Nitrogen-fixation
  • Denitrification

Pregunta 4

Pregunta
Which stage of the nitrogen cycle involve denitrifying bacteria which convert soil nitrates into gaseous nitrogen?
Respuesta
  • Ammonification
  • Nitrification
  • Nitrogen-fixation
  • Denitrification

Pregunta 5

Pregunta
What are the two main types of microorganisms that carry out nitrogen fixation?
Respuesta
  • Saprobiotic bacteria
  • Free-living nitrogen-fixing bacteria
  • Denitrifying bacteria
  • Mutualistic nitrogen-fixing bacteria

Pregunta 6

Pregunta
What do free-living nitrogen-fixing bacteria do?
Respuesta
  • Reduce gaseous nitrogen to ammonia, which they then use to manufacture amino acids
  • Turn ammonia into gaseous nitrogen, which they then use to manufacture amino acids

Pregunta 7

Pregunta
Mutualistic nitrogen-fixing bacteria live in nodules of roots and plants e.g. peas and beans
Respuesta
  • True
  • False

Pregunta 8

Pregunta
Mutualistic nitrogen-fixing bacteria obtain fats from the plant and the plant acquires amino acids from the bacteria
Respuesta
  • True
  • False

Pregunta 9

Pregunta
Soils must be well aerated to prevent the build-up of denitrifying bacteria
Respuesta
  • True
  • False
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