• HOME
  • QUIZ
  • CONTACT US
EXAMIANS
  • COMPUTER
  • CURRENT AFFAIRS
  • ENGINEERING
    • Chemical Engineering
    • Civil Engineering
    • Computer Engineering
    • Electrical Engineering
    • Mechanical Engineering
  • ENGLISH GRAMMAR
  • GK
  • GUJARATI MCQ

Microbiology of Soils

Microbiology of Soils
The diagnostic enzyme for nitrogen-fixing organisms is

nitrate oxidase
nitrogenase
none of these
nitrate reductase

ANSWER DOWNLOAD EXAMIANS APP

Microbiology of Soils
__________ play a key role in the transformation of rock to soil.

De-nitrifying bacteria
Cyanobacteia
Nitrifying bacteria
Pectin decomposing bacteria

ANSWER DOWNLOAD EXAMIANS APP

Microbiology of Soils
The nitrogenase consists of

none of these
both (a) and (b)
dinitrogenase
dinitrogenase reductase

ANSWER DOWNLOAD EXAMIANS APP

Microbiology of Soils
Denitrification is carried out

All of these
predominantly by Pseudomonas spp
predominantly by Bacillus spp
usually by facultative anaerobes

ANSWER DOWNLOAD EXAMIANS APP

Microbiology of Soils
Most soil protozoa are flagellates or amoebas, having their dominant mode of nitrogen as

ingestion of bacteria
ingestion of mold
ingestion of fungi
all of these

ANSWER DOWNLOAD EXAMIANS APP

Microbiology of Soils
Which of the following fungi on infecting crop roots can improve their uptake of phosphorus and other nutrients?

Candida torulopsis
VA Mycorrhiza
Aspergillus niger
Saccharomyces cerevisiae

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Microbiology of Soils

DOWNLOAD APP

  • APPLE
    from app store
  • ANDROID
    from play store

SEARCH

LOGIN HERE


  • GOOGLE

FIND US

  • 1.70K
    FOLLOW US
  • EXAMIANSSTUDY FOR YOUR DREAMS.
  • SUPPORT :SUPPORT EMAIL ACCOUNT : examians@yahoo.com

OTHER WEBSITES

  • GUJARATI MCQ
  • ACCOUNTIANS

QUICK LINKS

  • HOME
  • QUIZ
  • PRIVACY POLICY
  • DISCLAIMER
  • TERMS & CONDITIONS
  • CONTACT US
↑