Recent questions in Environmental Microbiology

The major class of enzymes catalyzing the cleavage of $C-C, C-O, C-N$, or other bonds by elimination, leaving double bonds or rings, or addition of groups to double bonds...

Malaria is caused by pathogenic $\_\_\_\_\_\_\_$.bacteriafungiprotozoaviruses

Which ONE of the following options is CORRECT with respect to sequential breakdown of deoxyribonucleic acid (DNA) into lower-molecular weight compounds?Deoxyribonucleic a...

Which of the following statements is/are CORRECT based on the electron donor $\text{(ED)}$ and electron acceptor $\text{(EA)}$ used in various bacterial mediated reaction...

A thermal process, at a specific temperature, results in $2-\log _{10}$ removal of non-thermotolerant pathogenic microorganisms from a water sample in $20$ min.The time n...

In a batch culture experiment, $2$ cells of a microorganism were added to a growth medium. During the experiment, a lag phase of $1$ hour was first experienced by the add...

​​​​Which one of the following is performed by autotrophic bacteria?Aerobic biodegradation of organic matterAnaerobic biodegradation of organic matterAerobic nitrificatio...

​​​​​Choose the correct statement(s) from the following regarding the structure/ reproduction of microorganismsProkaryotes do not have nucleus but Eukaryotes have nucleus...

​​​​​​Choose the correct option(s) from the following regarding the symbiotic relationshipsLichens are a symbiotic association of fungi and bacteria. They can survive in ...

​​​​​Consider the following statements on microbial metabolismUtilization of carbon for cell synthesis is termed as anabolism. During catabolism, adenosine triphosphate (...

​​​If microbial growth occurs under substrate unlimited conditions, according to Monod's kinetics, choose the correct option(s) from the followingMicrobial growth follows...

Tuberculosis is predominantly caused by __________.Entamoeba histolyticSalmonella typhiMycobacterium bovisBacillus cereus

Rod shaped bacterial cells are called ________.BacilliCocciSpirillaDiplococci

Which of the following statement$\text{(s)}$ is/are CORRECT?DNA is composed of nucleotidesFive types of nitrogenous bases occur in DNAEach phosphate is attached to two de...

With reference to disinfection, which of the following statement(s) is/are CORRECT?Ethanol damages lipid structures in the bacterial cell membraneMercuric chloride inacti...

Enzymes with the class of enzymes are listed in the table.EnzymeClass of Enzyme$\text{(a)}$ Lactate dehydrogenase$\text{(i)}$ Isomerases$\text{(b)}$ Alanine racemase$\tex...

Read the following statementsI. Photosynthesis takes place within the chloroplasts of the eukaryotes, whereas the breakdown of complex molecules to yield energy takes pla...

Read the following statementsi. Aerobic heterotrophic bacteria uses organic matter for carbon source and energy source.ii. Aerobic heterotrophic bacteria uses carbon diox...

The ratio of the moles of $\mathrm{CO}_2$ evolved to the moles of $\mathrm{O}_2$ consumed in respiration also called the respiratory quotient, is calculated for a carbohy...