COLUMN I | COLUMN II | ||
A | LAB | P | Adds vitamin B12 to curd and stops the growth of diseases causing microbes in stomach |
B | Propionibacterium shermanii | Q | Production of large holes in Swiss cheese |
C | Saccharomyces cerevisiae | R | Derived from leaves of a plant, it is CNS stimulant and can cause hallucinations |
D. | Aspergillus niger | S | Baker’s/Brewer’s yeast produces ethanol during fermentation |
A | B | C | D | |
1. | Q | P | R | S |
2. | P | Q | S | R |
3. | R | S | Q | P |
4. | S | R | P | Q |
1. | The levels of both BOD and DO are high |
2. | The levels of both BOD and DO are low |
3. | The levels of BOD will be high and the levels of DO will be low |
4. | The levels of BOD will be low and the levels of DO will be high |
1. | They can grow anaerobically on cellulosic material |
2. | They can produce large amounts of methane along with carbon dioxide and hydrogen |
3. | They can be found in anaerobic sludge during sewage treatment and in rumen of cattle |
4. | They are true bacteria and are chemoheterotrophs |
1. | Roquefort cheese is ripened by a growing a specific bacterium on them |
2. | LAB improves the nutritional quality of curd by increasing Vitamin A |
3. | Aspergillus niger is used for commercial production of citric acid |
4. | Statins are used to lower blood glucose levels in IDDM |
I: | vigorous growth of useful aerobic microbes into flocs is allowed |
II: | aerobic microbes consume the major part of the organic matter in the effluent. |
III: | the BOD of the water sample gets significantly increased |
1. | Only I and II are correct |
2. | Only I is correct |
3. | Only II and III are correct |
4. | I, II and III are correct |
Assertion (A): | The organic farmer holds the view that eradication of pest is undesirable |
Reason (R): | Biocontrol is not a good strategy to control pest |
1. | Both (A) and (R) are True and (R) is the correct explanation of (A) |
2. | Both (A) and (R) are True but (R) is not the correct explanation of (A) |
3. | (A) is True but (R) is False |
4. | Both (A) and (R) are False |
I: | Biochemical oxygen demand (BOD) is often used as an indicator of the degree of organic pollution of water. |
II: | An increase in BOD is used as a gauge of the effectiveness of wastewater treatment plants. |
1. | Only I is correct | 2. | Only II is correct |
3. | Both I and II are correct | 4. | Both I and II are incorrect |
1. | Aphids | 2. | Mosquito |
3. | Spider mites | 4. | Nematodes |