Q. No.Match the items in Column ‘A’ and Column ‘B’ and choose the correct answer.
Column I
Column II
A.
Lady bird
i.
Methanobacterium
B.
Mycorrhiza
ii.
Trichoderma
C.
Biological control
iii.
Aphids
D.
Biogas
iv.
Glomus
The correct answer is:
A
B
C
D
1.
ii
iv
iii
i
2.
iii
iv
ii
i
3.
iv
i
ii
iii
4.
iii
ii
i
iv
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The vitamin whose content increases following the conversion of milk into curd by lactic acid bacteria is:
| 1. | vitamin C | 2. | vitamin D |
| 3. | vitamin B12 | 4. | vitamin E |
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Consider the following statements:
| I: | Statins, used as blood cholesterol-lowering agents, are derived from Monascus purpureus |
| II: | Cyclosporin A, derived from Trichoderma, is used as an immunosuppressant |
| III: | Baculoviruses, in the genus Nucleopolyhederovirus, are species-specific, broad-spectrum insecticides |
Which of the above statements are true?
| 1. | I and II only | 2. | I and III only |
| 3. | II and III only | 4. | I, II and III |
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| I: | The upper half of the figure shows a very popular variety of cheese known as French Cheese. |  |
| II: | The lower half of the diagram shows the microbe responsible for the ripening of this cheese and this microbe is a bacterium called as Propionibacterium shermanii. |
| 1. | Only Statement I is correct |
| 2. | Only Statement II is correct |
| 3. | Both Statement I and Statement II are correct |
| 4. | Both Statement I and Statement II are not correct |
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| I. | Step 1 is hydrolysis where complex organic molecules are hydrolysed |  |
| II. | Step 2 is acidogenesis where small organic molecules are converted to fatty acid | |
| III. | Step 3 is acetogenesis | |
| IV. | Step 4 is methanogenesis |
| 1. | Only II and III | 2. | Only I, III and IV |
| 3. | Only I, II and IV | 4. | I, II, III and IV |
| Statement I: | Primary treatment removes material that will either float or readily settle out by gravity. |
| Statement II: | Secondary treatment removes the soluble organic matter that escapes primary treatment. |
| 1. | Statement I is correct but Statement II is incorrect |
| 2. | Statement I is incorrect but Statement II is correct |
| 3. | Statement I is correct and Statement II is correct |
| 4. | Statement I is incorrect and Statement II is incorrect |
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| Statement I: | The plant makes organic molecules such as sugars by photosynthesis and supplies them to the fungus. The fungus supplies to the plant water and mineral nutrients, such as phosphorus, taken from the soil. |
| Statement II: | Mycorrhizal plants are often more resistant to diseases, such as those caused by microbial soil-borne pathogens. |
| 1. | Statement I is correct but Statement II is incorrect |
| 2. | Statement I is incorrect but Statement II is correct |
| 3. | Statement I is correct and Statement II is correct |
| 4. | Statement I is incorrect and Statement II is incorrect |
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| Statement I: | They form a symbiotic relationship with the cyanobacterium Anabaena azollae. |
| Statement II: | Anabaena azollae is an extracellular endosymbiont (living outside the host's cells) which fixes atmospheric nitrogen. |
| 1. | Statement I is correct but Statement II is incorrect |
| 2. | Statement I is incorrect but Statement II is correct |
| 3. | Statement I is correct and Statement II is correct |
| 4. | Statement I is incorrect and Statement II is incorrect |
| Statement I: | Biological control or biocontrol is a method of controlling pests, such as insects, mites, weeds, and plant diseases, using other organisms. |
| Statement II: | The upper half shows the Dragonfly that is predator of aphids and the lower half is the Ladybird that is the predator of mosquito. |
| 1. | Only statement I |
| 2. | Only Statement II |
| 3. | Both Statement I and Statement II |
| 4. | Neither Statement I nor Statement II |
Which of the following fermented beverages is likely to have the least ethyl alcohol content?
| 1. | Whisky | 2. | Brandy |
| 3. | Rum | 4. | Beer |
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