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प्रश्न
Make a comparison and write down ways in which plant cells are different from animal cells.
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उत्तर
| Plant Cell | Animal Cell | |
| 1. | It is usually larger than an animal cell. | It is usually smaller in size. |
| 2. | It has a cell wall. | It does not have a cell wall. |
| 3. | It contains chloroplasts. | Chloroplasts are absent. |
| 4. | Plastids are present. | Plastids are absent. |
| 5. | Centrosome and centrioles are absent. | Centrosome and centrioles are present. |
| 6. | The nucleus is located near the cell wall. | The nucleus is located in the center. |
| 7. | Vacuoles are very large. | Vacuoles are small. |
| 8. | The Golgi apparatus is made up of separate units called dictyosomes. | There is a single Golgi apparatus that is easily visible and has a complex and developed structure. |
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संबंधित प्रश्न
Carry out the following osmosis experiment:
Take four peeled potato halves and scoop each one out to make potato cups. One of these potato cups should be made from a boiled potato. Put each potato cup in a trough containing water. Now,
- Keep cup A empty.
- Put one teaspoon of sugar in cup B.
- Put one teaspoon salt in cup C.
- Put one teaspoon sugar in the boiled potato cup D.
Keep these for two hours. Then, observe the four potato cups and answer the following:
- Explain why water gathers in the hollowed portion of B and C.
- Why is potato A necessary for this experiment?
- Explain why water does not gather in the hollowed-out portions of A and D.
Write short notes on the following.
Cytoplasm
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I take part in food production of a cell. Who am I? ____
Write about the contribution of Robert Hooke in cell biology.
