Q. No.Which one produces gas by decomposing the gobar (Dung) in gobar gas:
1. Fungus
2. Virus
3. Methanogenic bacteria
4. Algae
Subtopic: Â Microbes in Production of Biogas |
 98%
Level 1: 80%+
AIPMT - 1999
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Which of the following organizations played a major role in developing biogas production technology in India?
| 1. | Indian Space Research Organization (ISRO) |
| 2. | Indian Agricultural Research Institute (IARI) and Khadi and Village Industries Commission (KVIC) |
| 3. | Central Drug Research Institute (CDRI) |
| 4. | Indian Council of Medical Research (ICMR) |
Subtopic: Â Microbes in Production of Biogas |
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Level 1: 80%+
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Bacteria responsible for gobar gas formation are
| 1. | Methanogens | 2. | Thermophilic |
| 3. | Ammonifying | 4. | Nitrifying |
Subtopic: Â Microbes in Production of Biogas |
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Methanogens are present in:
| 1. | Aerobic environments |
| 2. | Anaerobic sludge digesters and rumen of cattle |
| 3. | Ocean surface |
| 4. | Freshwater lakes only |
Subtopic: Â Microbes in Production of Biogas |
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| Assertion (A): | A floating cover placed over the slurry in a biogas plant keeps on rising. |
| Reason (R): | This cover keeps on rising due to the gas produced in the tank by the microbial activity. |
Options:
| 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. | (A) is False but (R) is True. |
Subtopic: Â Microbes in Production of Biogas |
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Which of the following statements about methanogens is not correct?
| 1. | The can be used to produce biogas, |
| 2. | They are found in the rumen of cattle and their excreta. |
| 3. | They grow aerobically and breakdown cellulose-rich food. |
| 4. | They produce methane gas. |
Subtopic: Â Microbes in Production of Biogas |
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Level 1: 80%+
NEET - 2019
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Why are methanogens important in biogas production, and where are they commonly found?
| 1. | Methanogens convert cellulose into ethanol, which is used as biofuel, and are commonly found in yeast. |
| 2. | Methanogens convert methane into CO2 and hydrogen, and are commonly found in the soil. |
| 3. | Methanogens produce methane by breaking down cellulosic materials and are found in anaerobic sludge and the rumen of cattle. |
| 4. | Methanogens produce carbon dioxide from nitrogenous waste and are found in rivers. |
Subtopic: Â Microbes in Production of Biogas |
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Level 1: 80%+
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Consider the given two statements:
| Assertion (A): | Biogas plants are predominantly constructed in rural areas. |
| Reason (R): | Biogas plants require large quantities of cattle dung, which is readily available in rural areas where cattle rearing is common. |
| 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. |
Subtopic: Â Microbes in Production of Biogas |
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The residue left after methane production from cattle dung is:
| 1. | burnt |
| 2. | burried in land fills |
| 3. | used as manure |
| 4. | used in civil construction |
Subtopic: Â Microbes in Production of Biogas |
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Level 1: 80%+
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Subtopic: Â Microbes in Production of Biogas |
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