Microbial Ecology
Description: Microbiology Microbiology | |
Number of Questions: 15 | |
Created by: Adhira Saini | |
Tags: Microbiology |
Which of the following are examples of barophilic bacteria?
- Photobacterium profundum
- Schewenella benthica
- Staphylococcus aureus
- Colwellia psychrerythraea
- Micrococcus luteus Select the correct answer.
Which of the following are examples of eukaryotic halophiles?
- Halobacterium
- Dunaliella
- Nitzschia Select the correct answer.
Which of the following would be expected to grow at refrigeration temperatures?
Which of the following is a pair of hyperthermophilic bacteria?
Which of the following is a set of acidophiles only?
Which of the following statements is true about Aerotolerant anaerobes?
Which of the following is a genus of microaerophilic bacteria?
Which of the following is a sulphate reducing bacterium?
Which of the following statement/statements is/are true of microbial biofilm?
- Biofilms are composed of group of microorganisms adhering to environmental surfaces.
- Biofilms can form only on non-living surfaces.
- Natural biofilms always consist of only a single microbial species. Select the correct answer.
Match the column - I with column – II and select the correct option
Column – I | Column – II |
P. Chlamydomonas nivalis | 1. Psychrophile |
Q. Listeria monocytogenes | 2. Psychrotroph |
R. Escherichia coli | 3. Mesophile |
S. Cyanidium caldarium | 4. Thermophile |
Which of the following come under secondary treatment systems of waste water?
- Sedimentation
- Trickling filters
- Activated sludge
- Phosphorus removal Select the correct answer.
Which of the following is a set of obligate anaerobes only?
Match the column - I with column – II and select the correct option
Column – I | Column – II |
A. Removal of solids | 1. Primary treatment |
B. Degradation of biological content | 2. Secondary treatment |
C. Disinfection of the wastewater | 3. Tertiary treatment |
ASSERTION (A): Halophiles are salt-loving organisms that inhabit hypersaline environments. REASON (R): They have capacity to balance the osmotic pressure of the environment and resist the denaturing effect of salts.
In the following question there are two statements, Assertion (A) and Reason (R), consider both the statements independently and mark your answers as under:
1. If A and R both are correct and R is correct explanation of A.
2. If A and R both are correct and R is not correct explanation of A.
3. If A is correct and R is incorrect.
4. If A is incorrect and R is correct.
5. If A and R both are incorrect.
ASSERTION (A): Soil microbiology is the study of microbes in soil, their functions and effects on soil properties. REASON (R): The microbial ecosystem of soil includes only biotic components of soil.
In the following question there are two statements, Assertion (A) and Reason (R), consider both the statements independently and mark your answers as under:
1. If A and R both are correct and R is correct explanation of A.
2. If A and R both are correct and R is not correct explanation of A.
3. If A is correct and R is incorrect.
4. If A is incorrect and R is correct.
5. If A and R both are incorrect.