MICROBIOLOGY OF SOILS QUIZ

both (a) and (b)

none of these

dinitrogenase

dinitrogenase reductase

It also contains with traces of O2 and Cl2

Both (a) and (b)

It also contains with traces of H2S, N2, H2and CO

It is composed almost exclusively of methane and carbon dioxide

Micromonospora

all of these

Streptomyces

Nocardia

fast growth

medium growth

slow growth

none of these

Hydrolytic

All of these

Transitional

methanogenic

None of these

Non symbiotic and symbiotic microorganisms only

Symbiotic microorganisms only

Non symbiotic microorganisms only

demonstrating growth in a nitrogen free medium

measuring15N2 by mass spectrometer

cultivating the microorganisms in the presence of nitrogen labeled with isotropic nitrogen

All of these

Both (a) and (b)

Anabaena

Nostoc

Clostridium

ingestion of fungi

ingestion of mold

ingestion of bacteria

all of these

equal to

generally smaller than

none of these

generally greater than