Home⇒ Medical Science⇒ Microbiology⇒ Microbes in aquatic environment
| 1-Dont try to cram or spend more time here just read it fast and cover syllabus then practice MCQ's cheptor of same topic to check your progress. . |
| 2-Wrong options are also given but dont concentrate there, Right answer is in bold format. |
| Q1 ⇒ The Redfield ratio is an index of concentration of carbon, nitrogen and phosphorous [other wrong options] [Discuss in forum] |
| Q2 ⇒ Metabolism of dissolved organic material released by phytoplankton allows heterotrophic bacteria to become part of the particulate organic matter that is passed up the food web to be metabolized and released as mineral elements and CO2 at each transfer. This sentence describes the microbial loop [other wrong options] [Discuss in forum] |
| Q3 ⇒ The rate of flux of oxygen in air is __________ to/than the rate of flux of oxygen in water. greater [other wrong options] [Discuss in forum] |
| Q4 ⇒ Which of the following is correct? Ultramicrobacteria or nanobacteria are the dominant bacteria in marine systems [other wrong options] [Discuss in forum] |
| Q5 ⇒ Which of the following is correct? A Winogradsky column is used to demonstrate interactions and gradients that occur in aquatic environments [other wrong options] [Discuss in forum] |
| Q6 ⇒ The sulfur pearl of Namibia, Thiomargarita namibiensis Both (a) and (b) [other wrong options] [Discuss in forum] |
| Q7 ⇒ Members of all of the following genera of bacteria typically are found in a maturing Winogradsky column except Escherichia [other wrong options] [Discuss in forum] |
| Q8 ⇒ Hyphomycete fungi both (a) and (b) [other wrong options] [Discuss in forum] |
| Q9 ⇒ Which of the following species in water reveal the presence of fecal pollution of human or animal origin? All of these [other wrong options] [Discuss in forum] |
| Q10 ⇒ All of the following species are considered coliforms except Salmonella typhi [other wrong options] [Discuss in forum] |
| Q11 ⇒ The amount of oxygen dissolved in hypolimnion water in the winter is __________ to/than the amount of oxygen dissolved in hypolimnion water in the summer greater [other wrong options] [Discuss in forum] |
| Q12 ⇒ Coliforms are used as indicator organisms because both (a) and (b) [other wrong options] [Discuss in forum] |
| Q13 ⇒ Trickling filter comes under secondary treatment [other wrong options] [Discuss in forum] |
| Q14 ⇒ Chemical precipitation of phosphorus is tertiary treatment [other wrong options] [Discuss in forum] |
| Q15 ⇒ Because it can be used with a variety of media and allow a resuscitation step the __________ technique has become the common and often preferred method of evaluating the microbiological characteristics of water. membrane filtration [other wrong options] [Discuss in forum] |
| Q16 ⇒ Removal of solids is generally considered as a Primary treatment [other wrong options] [Discuss in forum] |
| Q17 ⇒ Which of the following is correct? All members of Hyphomycetes are also members of Fungi, but not all members of Fungi are members of Hyphomycetes [other wrong options] [Discuss in forum] |
| Q18 ⇒ __________ is an environment like __________ where microorganisms are functioning in an extremely thin film of water and where oxygen-containing air is close to them. high oxygen diffusion environment; soils [other wrong options] [Discuss in forum] |
| Q19 ⇒ Loss of carbon through the microbial loop in oligotrophic environments is __________ to/than the loss of carbon through the microbial loop in copiotrophic environments. greater [other wrong options] [Discuss in forum] |
| Q20 ⇒ Activated sludge undergoes Secondary treatment [other wrong options] [Discuss in forum] |