Q. No.The concept of "Omnis cellula-e-cellula" regarding cell division was first proposed by:
1. Aristotle
2. Rudolf Virchow
3. Theodore Schwann
4. Schleiden
1. Aristotle
2. Rudolf Virchow
3. Theodore Schwann
4. Schleiden
The shorter and longer arms of submetacentric chromosome are referred to as:
1. m-arm and n-arm respectively
2. s-arm and l-arm respectively
3. p-arm and q-arm respectively
4. q-arm and p-arm respectively
Which of the following pair of organelles does not contain DNA?
1. Nuclear envelope and Mitochondria
2. Mitochondria and Lysosomes
3. Chloroplast and Vacuoles
4. Lysosomes and vacuoles
Which of the following statements is not correct?
| 1. | Lysosomes are formed by the process of packaging in the endoplasmic reticulum. |
| 2. | Lysosomes have numerous hydrolytic enzymes |
| 3. | The hydrolytic enzyme of lysosomes are active under acidic pH |
| 4. | Lysosomes are membrane bound structure. |
Which of the following organelles does not contain RNA?
1. Plasmalemma
2. Ribosome
3. Chromosome
4. Nucleolus
Animal cells differ from plant cell in possessing:
1. Vacuoles
2. Centrosomes
3. Plastids
4. Mitochondria
Which is substitution of mitochondria in E coli?
1. Golgi body
2. Mesosome
3. Ribosome
4. Glyoxysomes
In prokaryotes, chromatophores are:
| 1. | specialised granules responsible for the colouration of cells |
| 2. | structures responsible for organising the shape of the organism |
| 3. | inclusion bodies lying free inside the cells for carrying out various metabolic activities |
| 4. | internal membrane systems that may become extensive and complex in photosynthetic bacteria |
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