Recent questions in Environmental Microbiology

Which one of the following statements is NOT correct?Photophosphorylation is the synthesis of $\text{ATP}$ from $\text{ADP}$ and inorganic phosphate in the presence of li...

Read the following statementsI. Bacteriophage is an anaerobic bacterium.II. Male-specific bacteriophage infect via the pili of other microorganisms including viruses.III....

Read the following statementsi. In endogenous metabolism by aerobic bacteria, electron acceptor is present inside the cells.ii. In endogenous metabolism by aerobic bacter...

Which of the following is the terminal electron acceptor in the electron transport chain of aerobic respiration?Water$\mathrm{NADH}$$\mathrm{O}_{2}$Cytochrome-c

Which of the following pairing of nucleotide bases is present in double helix DNA?Thymine - CytosineAdenine - ThymineCytosine - AdeninUracil - Thymine

In a sample, the growth of microbial cells started with an initial concentration of $5 \times 10^4$ cells per millilitre $(\mathrm{mL})$ of the sample. After a certain ti...

Which of the following is true for the nitrifying bacteria belonging to genus Nitrobacter?They are autotrophs.They are eukaryotes.They convert chemical energy to cellular...

Which of the following is/are correct for the process of glycolysis?There is net decrease in standard Gibbs free energy.The end product is glyceraldehyde 3-phosphate.Fist...

Reverse Transcriptase Polymerase Chain Reaction is an analytical procedure used in detection of pathogenic microorganisms. Which one of the following statements is NOT co...

For an exponentially growing microbial culture, the specific growth rate $(\mu)$ is related to its doubling time $\left(\mathrm{t}_{\mathrm{d}}\right)$ by which one of th...

A microbial culture, with a specific growth rate of $\mu_{1}$ (per hour), is being grown in a continuous reactor at steady state with hydraulic retention time (HRT) of $2...

A typical plasmid-free bacterial cell having a single chromosome consists of $\sim 55 \%$ protein, $\sim 3 \%$ DNA and $\sim 21 \%$ RNA, where " $\% "$ " represents perce...