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प्रश्न
Distinguish between the following pairs of terms :
Nucleolus and nucleus
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उत्तर
| Nucleolus | Nucleus |
| It is not enclosed by limiting membrane. | It is enclosed by a double layered limiting structure, also called the nuclear envelope. |
| It controls ribosome formation. | It controls activities of the cell. |
| It is rich in RNA | It is rich in DNA or the genetic material. |
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संबंधित प्रश्न
Cells are the basic structural units of living organisms’. Explain
Complete the crossword with the help of clues given below.
Across
1. This is necessary for photosynthesis.
3. Term for component present in the cytoplasm.
6. The living substance in the cell.
8. Units of inheritance present on the chromosomes.
Down
1. Green plastids.
2. Formed by collection of tissues.
4. It separates the contents of the cell from the surrounding medium.
5. Empty structure in the cytoplasm.
7. A group of cells.
What are centrioles? Write about their functions.
Who am I?
I am chemical factory of the cell.
What would have happened? If.........
Genes had been absent on the chromosomes.
Fill up the blank with the terms given below
Animal cells have no cell ______.
Write true or false for each statement. Rewrite the false statements correctly:
Vacuoles are filled with a fluid called nucleoplasm
Give one main function of the following:
Chromosomes
Define the following term:
Protoplasm
The DNA present in chloroplast is ______.
