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Q. No.Which of the following statements is/are correct regarding Archaea?
1.
Archaea have a similar cell wall structure to bacteria.
2.
Archaea are known for their ability to survive in extreme conditions.
3.
Archaea contain peptidoglycan in their cell wall composition.
4.
Archaea have membrane bound organelles.
Subtopic: Kingdom Monera: Bacterial Classification |
94%
Level 1: 80%+
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Consider the given two statements:
| Assertion (A): | Lichens are considered excellent indicators of air pollution. |
| Reason (R): | They thrive in polluted areas as they use the pollutants as nutrients. |
| 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 (R) |
| 3. | (A) is True but (R) is False |
| 4. | (A) is False but (R) is True |
Subtopic: Lichens |
90%
Level 1: 80%+
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Which of the following statements correctly describes a feature unique to the fungi classified under the phylum Ascomycetes?
| 1. | They are predominantly aquatic fungi with flagellated zoospores. |
| 2. | They reproduce sexually through the formation of basidiospores. |
| 3. | They possess a dikaryotic stage in their life cycle. |
| 4. | Their spores are typically produced internally in a sac-like structure called an ascus. |
Subtopic: Kingdom Fungi: Ascomycetes |
61%
Level 2: 60%+
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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 |
86%
Level 1: 80%+
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Match each item in Column I with one in Column II and select your answer from the codes given below:
Codes:
| Column I | Column II | ||
| A. | Diatoms | a. | Protein rich layer pellicle |
| B. | Dinoflagellates | b. | Chief producers in oceans |
| C. | Euglenoids | c. | Spores with true walls |
| D. | Slime moulds | d. | Two flagella, one transverse and one longitudinal |
| A | B | C | D | |
| 1. | b | a | c | d |
| 2. | b | d | a | c |
| 3. | b | c | a | d |
| 4. | b | a | d | c |
Subtopic: Kingdom Protista: Chrysophytes | Kingdom Protista: Dinoflagellates | Kingdom Protista: Euglenoids | Kingdom Protista: Slime Moulds |
91%
Level 1: 80%+
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Identify the incorrect statement regarding fungi belonging to Basidiomycetes:
| 1. | The mycelium is aseptate and coenocytic |
| 2. | Asexual spores are generally not found |
| 3. | Sex organs are absent |
| 4. | Basidiospores are exogenously produced on the basidium |
Subtopic: Kingdom Fungi: Basidomycetes |
79%
Level 2: 60%+
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Match the following organisms with their respective kingdoms:
1. 1-D, 2-A, 3-C, 4-B
2. 1-B, 2-C, 3-D, 4-A
3. 1-D, 2-C, 3-B, 4-A
4. 1-C, 2-D, 3-A, 4-B
| Column I | Column II | ||
| 1 | Spirogyra | A | Monera |
| 2 | Aspergillus | B | Protista |
| 3 | Paramecium | C | Fungi |
| 4 | E. coli | D | Plantae |
1. 1-D, 2-A, 3-C, 4-B
2. 1-B, 2-C, 3-D, 4-A
3. 1-D, 2-C, 3-B, 4-A
4. 1-C, 2-D, 3-A, 4-B
Subtopic: Kingdom Monera: Introduction | Kingdom Protista: Introduction | Kingdom Fungi: Introduction |
88%
Level 1: 80%+
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Which of the following features is not a characteristic generally found in the fungi kingdom?
1. Cell walls made of cellulose
2. Heterotrophic mode of nutrition
3. Ability to reproduce sexually and asexually
4. Presence of chitin in cell walls
1. Cell walls made of cellulose
2. Heterotrophic mode of nutrition
3. Ability to reproduce sexually and asexually
4. Presence of chitin in cell walls
Subtopic: Kingdom Fungi: Introduction |
93%
Level 1: 80%+
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Consider the given two statements:
| Assertion (A): | Archaea are often found in extreme environments like hot springs and salt pans due to their unique cell wall structure. |
| Reason (R): | The cell walls of Archaea contain peptidoglycan, which provides resistance to extreme conditions. |
| 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: Kingdom Monera: Bacterial Classification |
Level 3: 35%-60%
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Match each item in Column I with one in Column II and select the best match as your answer from the codes given:
Codes:
| Column I | Column II | ||
| A | Archaebacteria | P | Some can fix atmospheric nitrogen in heterocysts |
| B | Cyanobacteria | Q | Include important decomposers and are most abundant bacteria |
| C | Mycoplasma | R | Include extremophiles and methanogens |
| D | Heterotrophic bacteria | S | Lack a cell wall and can live without oxygen |
| A | B | C | D | |
| 1. | P | R | Q | S |
| 2. | R | P | Q | S |
| 3. | R | P | S | Q |
| 4. | P | R | S | Q |
Subtopic: Kingdom Monera: Bacterial Classification |
92%
Level 1: 80%+
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