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NITROGEN FIXATION (BIOTECHNOLOGY)

An educational illustration of nitrogen-fixing bacteria in a plant root system, showing symbiotic relationships and the process of nitrogen fixation, vibrant and colorful style.

Nitrogen Fixation Quiz

Test your knowledge on nitrogen fixation and its significance in biotechnology with our comprehensive quiz! Dive into the fascinating world of nitrogen-fixing organisms, their symbiotic relationships, and their impact on agriculture and the environment.

10 engaging questions
Multiple choice and checkbox formats
Learn about crucial nitrogen-fixing bacteria

10 Questions2 MinutesCreated by GrowingBotanist42

All are modes of plant acquisition of Nitrogen EXCEPT ___.

What enzyme is used by plants to fasten the conversion of atmospheric nitrogen (N2) to ammonia (NH3)?

Amylase

Nitrogenase

Ammonase

Nitrogenes

These are Nitrogen-fixing organisms found in agricultural and natural systems EXCEPT ____.

Archaebacteria

Cyanobacteria

Autotrophic bacteria

Heterotrophic bacteria

Free-living organisms behave as anaerobes or microaerophiles while fixing nitrogen.

True

False

The level of nitrogen fixation is determined by several factors. Choose 4.

soil temperature

The ability of the host plant to provide a rhizosphere environment low in oxygen pressure

The competitiveness of the bacteria

The inefficiency of nitrogenase

the availability of host photosynthates for the bacteria

Soil pH

The plant provides sugars from photosynthesis that are utilized by the nitrogen-fixing microorganism for the energy while the microbe provides fixed nitrogen to the host plant for its growth. What type of symbiosis is this?

Commensalism

Competition

Parasitism

Mutualism

What is the nodulating bacteria of Alfalfa?

Rhizobium leguminosarum biovar trifolii

Sinorhizobium melilotii

Azorhizobium caulinodans

Mesorhizobium loti

What is the ffect of the increased loads of nitrogen fertilizer to freshwater?

Nitrogen fixation

Eutrophication

Pollution

Date:When did Beijerinck discovered BNF?

1900

1901

1902

1903

ALL are nitrogen-fixing bacteria EXCEPT

Azotobacter

Klebsiella

Bacillus

Clostridium

Coccus

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