Viruses are non-cellular organisms but replicate themselves once they infect the host cell. To which of the following kingdom do viruses belong?
1. Monera | 2. Protista |
3. Fungi | 4. None of the above |
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Members of phycomycetes are found
I. | In aquatic habitats |
II. | On decaying wood |
III. | In moist and damp places |
IV. | As obligate parasites on plant |
Choose from the following options:
1. None of the above | 2. I and IV |
3. II and III | 4. All of the above |
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In Linnaeus’ time, the number of Kingdoms of living organisms was
1. | 2 | 2. | 3 |
3. | 4 | 4. | 5 |
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Fungi can be distinguished from other living organisms by
1. Presence of chitinous cell wall
2. Structure of cell membrane
3. Mode of nutrition
4. Multicellular body organization
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Match the bacteria in Column I with its shape in Column II and select the correct option from the codes given below:
COLUMN I |
|
COLUMN II |
|
A |
Bacillus |
a |
Rod |
B |
Coccus |
b |
Spherical |
C |
Spirilla |
c |
Spiral |
D |
Vibrio |
d |
Comma |
Codes
A | B | C | D | |
1. | a | b | c | d |
2. | b | a | c | d |
3. | a | d | c | b |
4. | b | a | d | c |
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Chrysophytes:
I. | include diatoms and desmids |
II. | are found only in marine water |
III. | are planktonic |
1. Only I and II are correct
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct
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In the symbiotic relation lichen, the mycobiont does not:
1. prepare food for the other partner
2. provide shelter to the other partner
3. absorb mineral nutrients for the other partner
4. absorb water for the other partner
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Potato Spindle Tuber Disease is caused by a pathogen that is:
1. | A nucleocapsid |
2. | A low molecular weight free RNA |
3. | An abnormally folded protein |
4. | A protozoan |
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Prion is:
1. A nucleocapsid
2. A low molecular weight free RNA
3. An abnormally folded protein
4. A protozoan
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Identify the incorrectly matched pairs:
I. Louis Pasteur: Gave the name virus
II. D. J Ivanowsky: Recognized the causal agents of mosaicism in tobacco to be larger than bacteria
III. M. W. Beijerinek: Contagium vivum fluidum
IV. W. M. Stanley: Discovered HIV
1. | I and III | 2. | I and II |
3. | III and IV | 4. | II and IV |
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