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  • Bone shaped sclerenchymatous cells found in hypodermal layers of some seeds and fruits are called Option: 1 osteosclereids <d

Bone shaped sclerenchymatous cells found in hypodermal layers of some seeds and fruits are called 

Option: 1

osteosclereids 


Option: 2

Macrosclereids 


Option: 3

brancysclereids 


Option: 4

Trichosclereids 


Answers (1)

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As we have learned

Scleroid -

Scleroid these cell are small, thick walled and their ends are not pointed.

- wherein

Types of Scleroid

  • Stone cells or Brachysclereids or Grit cell - They are found in endocarp of drupe fruits, so endocarp becomes hard. Sclerenchyma. They are present in endocarp of Coconut, Mango, Almond, Walnut etc. Besides drupe fruits brachysclereids also present in fleshy (edible) part of pear.
  • Trichosceids - They are known as internal hairs. They are spine liked found in floating leaves.
  • Astrosclereids or Stellate Sclerenchyma - Star-shaped, found in floating leaves. ex. lotus
  • Macro-Scleroid  or Rod cells or Malpighi cells - They are small and rod like and present in seed coat of leguminous

Hardest seed coat is found in french bean in leguminous plant. In plant Kingdom hardest seed caot is present in Lotus.

  • Osteo-Sclereids - These are present in leaves of Hakea and Osmanthus

 

 

 

Posted by

seema garhwal

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