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प्रश्न
Distinguish between the following pairs of terms :
Centrosome and chromosome
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उत्तर
| Centrosome | Chromosome | ||
| (i) | It is a clear area of cytoplasm close to the nucleus, from which spindle fibres develop during cell division. | (i) | Chromosomes carry hereditary information or genes, which transmit genetic characters from parents to offspring. |
| (ii) | A centrosome is found only in an animal cell. | (ii) | Chromosomes are found in the nucleus of both animal and plant cells. |
| (iii) | These are found outside the nucleus. | (iii) | These are found inside the nucleus. |
| (iv) | It consists of centrioles and centrospheres. | (iv) | It consists of nucleic proteins and nucleic acids |
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संबंधित प्रश्न
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.
Name the Following :(A) Smallest Cell Organelle
What would have happened? If.........
RBCs had mitochondria.
Who is odd man among us? Give reason.
Nucleolus, mitochondria, plastids, endoplasmic reticulum
Give functions.
Vacuole
Which of the following cell organelles is correctly matched with its function?
Fill in the blanks :
More than a thousand chromosomes are found in the nucleus of certain _______.
Distinguish between the following pairs of terms :
Nucleolus and nucleus
State the major function of the following :
Ribosome
State the major function of the following :
Asters of centrosome:
State the major function of the following :
Vacuoles
Put a tick mark (✓) against the correct alternative in the following statement:
The vacuole contains:
Fill up the blank with the terms given below
Animal cells have no cell ______.
Fill up the blank with the terms given below
Plastids contain ______.
Fill in the blanks:
The jelly-like fluid that surrounds the nucleus of a cell is called ______.
Fill in the blanks:
______ membrane is a selectively permeable membrane.
Write true or false for each statement. Rewrite the false statements correctly:
Golgi bodies form a network of tubes which run throughout the cytoplasm
Write true or false for each statement. Rewrite the false statements correctly:
Chromoplasts are the kitchen of the cell
Give one main function of the following:
Chromosomes
Identify the cellular structure with the help of the following clue:
Supportive framework for the cell.
