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प्रश्न
Why are the cells generally of a small size?
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उत्तर
Cells generally remain small in size because:
- To enable different regions of the cell to communicate with each other rapidly for the cell to function effectively
- To have a large surface area is to volume ratio for greater diffusion of substances, in and out of the cell.
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संबंधित प्रश्न
Where are proteins synthesized inside the cell?
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.
The cell organelle which synthesizes protein.
What would have happened? If.........
Genes had been absent on the chromosomes.
Which of the following cell organelles is correctly matched with its function?
State whether the following statement is true (T) or False (F):
All animal cells contain a cell wall.
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:
Golgi bodies form a network of tubes which run throughout the cytoplasm
Write a short answer.
Why is the cell membrane called selectively-permeable membrane?
Give two examples of cell organelles.
