Cell Specialization

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Cell Specialization
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????????????? Plant Tissue
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????????????????????????????????

• ?????????? chloroplast
• ?? vacuole ???? ?????????????
• ?? cell wall

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• ??????????????????????????? 3 ???? ??????
• Dermal tissue (???????????????)
• Vascular tissue (?????????????????)
• Ground tissue (?????????????????)

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• ???????????????????
• Parenchyma
• Collenchyma
• Scherenchyma
• Fiber cells
• Sclereids or stone cells

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Parenchyma ???????????? unspecialized
?????????????? ??????????????????????????????????

Parenchyma
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Collenchyma ????????????? parenchyma
??????????????????????????????????????????????????
???????????????
Collenchyma
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Sclerenchyma

• ??????????????????????????????????????????????????
  ??????????????
• ?????????????????? ?????????? lignin
• ??????????????????????
• ???????????? fiber cells ????????????????????????
• Sclereids (stone cell) ??????????????????
  ???????????????

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Tracheids and Vessel Elements
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Sieve-Tube Members Food Conducting Cells
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???
?????????????????
??????????????
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????????????????????
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???????????????????????
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?????
??????????????
?????????????????
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???????????????????
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??????????????????????
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??
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• ??????????????
• Photosynthesis ?????????????? mesophyll tissue
• ???????????????? Xylem, Phloem
• ??????????? epidermis ?????????? wax
  ?????????????????????????
• ??????? (guard cells) ??????????????? gas

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