Specialized cells for fixing atmospheric nitrogen in Nostoc are:
1. Heterocysts
2. Hormogonia
3. Nodules
4. Akinetes

Subtopic:  Kingdom Monera: Bacterial Classification |
 96%
Level 1: 80%+
NEET - 2013
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Which one of the following is true for fungi? 
1. They lack a rigid cell wall 
2. They are heterotrophs 
3. They lack nuclear membrane 
4. They are phagotrophs 
Subtopic:  Kingdom Fungi: Introduction |
 79%
Level 2: 60%+
NEET - 2013
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Whittaker proposed an elaborate five kingdom classification – Monera, Protista, Fungi, Plantae and Animalia. Which of the following pairs is correctly matched?
1. Monera All members have a cell wall
2. Protista All members are photosynthetic
3. Fungi All members are heterotrophs
4. Animalia All members reproduce only sexually


 
Subtopic:  Different Classification Systems |
 71%
Level 2: 60%+
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Lichen can be symbiotic association between fungi (mostly ascomycetes and basidiomycetes) and
A: Algae (usually green)
B: Cyanobacteria
1. Only A
2. Only B
3. Either A or B
4. Neither A nor B
 
Subtopic:  Lichens |
Level 3: 35%-60%
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Assertion(A): Viruses are smaller than bacteria.
Reason(R): Viruses pass through bacteria-proof filters.
Choices for Assertions and reasons:
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:  Virus, Viroids & Prions |
Level 4: Below 35%
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Assertion(A): The RNA of the viroid is of low molecular weight.
Reason(R): This RNA is able to cause neurological diseases in humans.
Choices for Assertions and reasons:
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:  Virus, Viroids & Prions |
 62%
Level 2: 60%+
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Assertion(A): Archaebacteria are special bacteria.
Reason(R): They live in harsh habitats.
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 |
 80%
Level 1: 80%+
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Assertion (A): Dikaryon is observed in Ascomycetes and Basidiomycetes.
Reason (R): In some fungi karyogamy is delayed after plasmogamy.
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:  Kingdom Fungi: Ascomycetes | Kingdom Fungi: Basidomycetes |
 65%
Level 2: 60%+
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Assertion (A): Viruses are an exception to cell theory.
Reason (R): Viruses are noncellular in nature.
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:  Virus, Viroids & Prions |
 83%
Level 1: 80%+
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Assertion (A): Archaebacteria are most resistant to adverse environmental conditions.
Reason (R): In archaebacteria, cell wall is highly resistant and complex.
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:  Kingdom Monera: Bacterial Classification |
 91%
Level 1: 80%+
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