Question
Write a short note on nucleus
✓
Answer
- Nucleus
- Nucleus is seen in the cytoplasm of plant and Animal cells.
- It is surrounded by nuclear envelope.
- It has one or two nucleoli and chromatin body.
- The chromatin body stores genetic information.
- Functions of Nucleus:
- It controls all the processes and chemical reactions that take place inside the cell.
- Inheritance of character from one generation to another.
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Crossword
Across
1. Fibre that is used as synthetic wool.
2. A plastic used for making water bottles.
3. A long chain made of small repeatingmonomers.
4. Another name for this semi-synthetic fibre is artificial silk.
Down
5. A type of fibre that is naturally obtained from a cocoon.
6. A synthetic fibre classified as polyester.
7. A polymer used for making rope.
Across
1. Fibre that is used as synthetic wool.
2. A plastic used for making water bottles.
3. A long chain made of small repeatingmonomers.
4. Another name for this semi-synthetic fibre is artificial silk.
Down
5. A type of fibre that is naturally obtained from a cocoon.
6. A synthetic fibre classified as polyester.
7. A polymer used for making rope.
Two spheres of same size are made from copper and iron respectively. Find the ratio between their masses (Density of copper is $8,900 kg / m$ and iron is $7,800 kg / m ^3$ ).
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