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Q. No.Subtopic: Kingdom Monera: Bacterial Cell Structure |
92%
From NCERT
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All the following will be true for heterotrophic bacteria except:
| 1. | They are most abundant bacteria in nature. |
| 2. | The majority are important decomposers. |
| 3. | None of them is capable of fixing atmospheric nitrogen. |
| 4. | Some are pathogens causing damage to human beings, crops, farm animals and pets. |
Subtopic: Kingdom Monera: Bacterial Classification |
87%
From NCERT
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All the following fungi belong to Dueteromycetes except:
1. Alternaria
2. Colletotrichum
3. Trichoderma
4. Ustilago
1. Alternaria
2. Colletotrichum
3. Trichoderma
4. Ustilago
Subtopic: Kingdom Fungi: Deuteromycetes | Kingdom Fungi: Basidomycetes |
92%
From NCERT
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Match each item in Column I with the one in Column II and select the correct match from the codes given:
Codes:
| Column I [Kingdom] |
Column II [Cell wall] |
||
| A | Monera | P | Absent |
| B | Fungi | Q | Chitinous |
| C | Plantae | R | Polysaccharide + amino acid |
| D | Animalia | S | Cellulosic |
| A | B | C | D | |
| 1. | R | S | Q | P |
| 2. | R | Q | S | P |
| 3. | Q | S | R | P |
| 4. | P | Q | R | S |
Subtopic: Different Classification Systems |
91%
From NCERT
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Viroid is an infectious agent that:
1. is larger than viruses.
2. was found to be a free DNA.
3. lacks the protein coat that is found in viruses.
4. has RNA of a very high molecular weight.
1. is larger than viruses.
2. was found to be a free DNA.
3. lacks the protein coat that is found in viruses.
4. has RNA of a very high molecular weight.
Subtopic: Virus, Viroids & Prions |
93%
From NCERT
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Consider the two statements:
1. Only I
2. Only II
3. Both I and II are correct
4. Both I nor II are incorrect
| I: | Bacteria reproduce sexually |
| II: | Transformation of a bacterial cell is sexual reproduction |
2. Only II
3. Both I and II are correct
4. Both I nor II are incorrect
Subtopic: Kingdom Monera: Bacterial Reproduction |
From NCERT
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The vast majority of bacteria:
| 1. | are capable of fixing atmospheric nitrogen. |
| 2. | are photosynthetic autotrophs and have gas vacuoles. |
| 3. | do not have peptidoglycan in their cell walls. |
| 4. | depend on other organisms or on dead organic matter for food. |
Subtopic: Kingdom Monera: Bacterial Classification |
81%
From NCERT
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Why are lichens considered excellent indicators of air pollution?
| 1. | They thrive in environments with high concentrations of nitrogen and sulphur compounds. |
| 2. | They are sensitive to airborne pollutants, which disrupt their symbiotic relationship. |
| 3. | They absorb heavy metals from the environment promoting their growth. |
| 4. | They can metabolize and break down organic pollutants in the air. |
Subtopic: Lichens |
89%
From NCERT
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The phrase ‘Contagium vivum fluidum’ is associated with:
| 1. | M.W. Beijerinck | 2. | W.M. Stanley |
| 3. | Louis Pasteur | 4. | Dmitri Ivanowsky |
Subtopic: Virus, Viroids & Prions |
87%
From NCERT
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Asexual reproduction can take place in some fungi with the help of spores called:
1. conidia
2. oospores
3. ascospores
4. basidiospores
1. conidia
2. oospores
3. ascospores
4. basidiospores
Subtopic: Kingdom Fungi: Sexual Reproduction in Fungi |
88%
From NCERT
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