List of top Environmental Sciences Questions on Microbiology and Biotechnology

Which of the following methods of separation are applicable to Liquid Chromatography (LC)? A. Liquid--liquid B. Size exclusion C. Gas--solid D. Ion exchange E. Affinity

What is the advantage of immobilisation of enzymes and whole cell for industrial production of products?

Match the following:

List I	List II
A. Biofilm --- IV. A layer of organic matter and microorganisms formed by the attachment and proliferation of bacteria B. Glycocalyx --- I. Bacterial extracellular polymer that creates a visible slimy layer on solid surface C. Red tides --- III. Algal bloom composed of red pigmented dinoflagellates D. Coliform bacteria --- II. Gram negative non spore forming Bacilli usually found in the intestine	IV. A layer of organic matter and microorganisms formed by the attachment and proliferation of bacteria I. Bacterial extracellular polymer that creates a visible slimy layer on solid surface III. Algal bloom composed of red pigmented dinoflagellates II. Gram negative non spore forming Bacilli usually found in the intestine

How can the ecological footprint of the entire human population be estimated?

Match bacteria/microbes with their functions:

List I	List II
A. Achromobacter --- III. Denitrification B. Nitrobacter --- IV. Nitrite to Nitrate C. Clostridium --- I. N2 fixation D. Nitrosomonas --- II. Ammonia to Nitrite conversion	III. Denitrification IV. Nitrite to Nitrate I. N2 fixation II. Ammonia to Nitrite conversion

Which of the following microbial species are helpful in the denitrification process?
Microbial species:
A. Rhizobium sp
B. Achromobacter
C. Pseudomonas
D. Nitrosomonas
E. Azotobacter
Choose the correct answer from the options given below:

There are several instances where the DNA of the bacteriophage resides inside the bacterial cell without replication and virus generation. The process of co-existence of the bacterium and phage DNA is known as:

The ”Biofilm” is a thin layer that constitutes:

Overall Glycolysis yields some ATPs, but in early stages, ATP is utilised to phosphorylate sugar substrates. In which of the following steps is ATP consumed?

Which of the following reproduce sexually by forming ascospores, which are small sacs commonly referred to as ”asci”?

Fungal diversity is currently classified into:

While separating the protein using polyacrylamide gel electrophoresis, the major ions playing an important role in stacking the protein are:
i. Glycine of the running gel buffer
ii. Chloride ion
iii. The protein itself
Which of the following is correct?