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Why are the sclerenchymatous cells hard ...

Why are the sclerenchymatous cells hard ?

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They are hard because their cell wall is thickened with lignin.
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BHARATI BHAWAN (ENGLISH)-PRACTICALS-Exercise (Multiple Choice Questions)
  1. Why are the sclerenchymatous cells hard ?

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  2. What type of cells will you observe in an onion peel examined under a ...

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  3. On adding a drop of iodine solution to an onion peel ,

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  4. Why do we cover the onion peel placed on a glass slide with a coversli...

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  5. Which type of cells are there in the onion peel ?

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  6. An onion is a modified

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  7. When you observe the onion peel under the high magnificaton of the mic...

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  8. Why do we keep the onion peel on a drop of water ?

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  9. What kind of cells are the human cheek cells ?

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  10. Why is the flat end of a sterile toothpick used to scrape the inside s...

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  11. If the cheek cells are placed on a dirty slide , what do we observe un...

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  12. The oval dense structure present in the centre of a cheek cell is

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  13. The region between the nucleus and cell membrane in a cheek cell is oc...

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  14. Which of the following is not found in cheek cells ?

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  15. Which of the following features makes plant cells autotrophic ?

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  16. Compared to the onion peel cells, cheek cells are more irregular in sh...

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  17. Which of the following is not a example of simple tisse in plants ?

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  18. Which of the following plant tissues generally have oval or spherical ...

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  19. Which of the following simple permanent tissues does not have closely ...

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  20. Intercellular spaces are usually found between

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  21. What is the main function of parenchyma ?

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