Geography, asked by Anonymous, 6 months ago

Distinguish between tracheids and vessels?​

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Answered by Anonymous
21

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Tracheids:-

1. Main conducting elements of pteridophytes and gymnosperms

2. Tracheids originate from single cells

3. Tracheids have a comparatively narrow diameter

4. They have large pits which are less in number

5. They are imperforated cells

6. They are less efficient in water conduction due to the absence of perforations

7. Walls are more thickened with narrow lumen

8. Average length upto 1 m. m (rarely 12 cms.)

Vessels:-

1. Main conducting elements of angiosperms

2. Vessel members, which are joined into long continuous tubes, originate from longitudinal file of cells

3. Vessels have a comparatively wide diameter

4. They have small pits which are larger in number

5.They are perforated cells

6. They are more efficient in water conduction due to the presence of perforations

7. Walls are less thickened with large lumen

8. Average length upto 10 cms or more( Rarely 2-6 metres)

Answered by swathikamath492
1

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