Q. No.Cell is the fundamental structural and functional unit of all living organisms. This statement can be best justified by the fact that:
1.
The cells contain nucleic acids that contain genetic information
2.
A large number of organelles present in the cell perform various functions
3.
Anything less than a complete structure of a cell does not ensure independent living
4.
All multi-cellular organisms begin their life as a single celled zygote
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Who first saw and described a living cell?
| 1. | Anton Von Leeuwenhoek | 2. | Robert Hooke |
| 3. | Robert Brown | 4. | Rudolph Virchow |
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Who concluded, based on his studies on plant tissues, that the presence of cell wall is a unique character of plant cells?
| 1. | Matthias Shcleiden | 2. | Theodor Schwann |
| 3. | J. B. S. Haldane | 4. | Rudolph Virchow |
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The famous aphorism ‘omniscellula-e-cellula’ was added to the cell theory in 1855 by
| 1. | Matthias Shcleiden | 2. | Theodor Schwann |
| 3. | J. B. S. Haldane | 4. | Rudolph Virchow |
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Ribosomes are non-membrane bound organelles found in:
1. All prokaryotic cells only
2. All eukaryotic cells only
3. All somatic cells in eukaryotic organisms only
4. All cells
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A non-membrane bound organelle found in animal cells that helps in cell division would be:
| 1. | Centromere | 2. | Centrosome |
| 3. | Basal body | 4. | Fimbriae |
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The genomic DNA of a bacterial cell is:
1. circular and located on a single chromosome
2. circular and located on multiple chromosomes
3. linear and located on a single chromosome
4. linear and located on multiple chromosomes
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Extra-chromosomal circular double stranded and autonomously replicating DNA found in many bacteria is known as:
| 1. | Plastid | 2. | Genophore |
| 3. | Plasmid | 4. | Genome |
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A ‘slime layer’ or a ‘capsule’ is a modification of which of the following layers of the cell envelope of a prokaryotic cell?
| 1. | Glycocalyx | 2. | Cell wall |
| 3. | Lipoprotein layer | 4. | Cell membrane |
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