Q. No.
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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Mesosomes, extensions of plasma membrane in bacterial cells, help in all the following except:
| 1. | Cell wall formation |
| 2. | DNA replication and distribution to daughter cells |
| 3. | Respiration |
| 4. | Photosynthesis |
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