Support in Plants
5
Support in plants Azneezal Ar-Rashid Smk Sri Aman 95007 Sri Aman, Sarawak February 2010
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Transcript of Support in Plants
![Page 1: Support in Plants](https://reader033.fdocuments.in/reader033/viewer/2022061118/546a4546b4af9ff86b8b4846/html5/thumbnails/1.jpg)
Support in plants
Azneezal Ar-RashidSmk Sri Aman
95007 Sri Aman, Sarawak
February 2010
![Page 2: Support in Plants](https://reader033.fdocuments.in/reader033/viewer/2022061118/546a4546b4af9ff86b8b4846/html5/thumbnails/2.jpg)
• Submerged plants : Hydrilla sp– Leaves : thin, narrow &
flexible– Resistance to water flow– Stems : no woody tissues
![Page 3: Support in Plants](https://reader033.fdocuments.in/reader033/viewer/2022061118/546a4546b4af9ff86b8b4846/html5/thumbnails/3.jpg)
• Floating plants :Hyacinth – Leaves : broad, firm,
flexible– Resistant to wave action– Have aerenchyma tissue
(stems & leaves)• Spongy tissues• Large air spaces• Provide buoyancy
![Page 4: Support in Plants](https://reader033.fdocuments.in/reader033/viewer/2022061118/546a4546b4af9ff86b8b4846/html5/thumbnails/4.jpg)
• Terrestrial plants : herbaceous plant– Turgidity
• Parenchyma cells• Collenchyma cells
– Cell walls with cellulose and pectin
• Thicker – Mechanical strength
![Page 5: Support in Plants](https://reader033.fdocuments.in/reader033/viewer/2022061118/546a4546b4af9ff86b8b4846/html5/thumbnails/5.jpg)
• Woody plants– Provided by :
• Sclerenchyma tissue– Fibres
» In vascular tissue– Sclereids
» In fruits and seeds
• Xylem tissue– Wood