the tissue by girij

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THE TISSUE

• SUBMITTED BY - GIRIJ BHUMIK
• SUBMITTED TO - MRS. PURNIMA

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CONTENT

• TISSUE
• HISTORY
• IMPORTANCE
• TYPES OF TISSUE
• PLANT TISSUE

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WHAT IS TISSUE ?

• A group of cells which are similar in structure
  and work together to perform a common function is
  called tissue.

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HISTORY OF TISSUE

• The term tissue was given by BICHAT.
• Study of tissue is called histology.

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IMPORTANCE OF TISSUE

1. It increase efficiency.
2. It decreases the work load of individual cell.
3. It form organ and organ system.
4. It increase the survival.

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TYPES OF TISSUE

• There are two types of tissue
• Plant tissue
• Animal tissue

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Plant Tissue

• MERISTEMATIC
• TISSUE
• Apical
• Intercalary
• Lateral

Permanent Tissue
Complex permanent tissue
Simple permanent tissue
1.Parenchyma 2.Collenchyma 3.sclernchyma
1.Xylem 2.phloem
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MERISTMATIC TISSUE

• It is the plant tissue of thin walled cells which
  have potential to divide and form new cells.
• Cells of this tissue are very active thin walled
  and have dense cytoplasm.
• They do not have vacuole

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APICAL MERISTEM

• It is present at the growing tips of stem and
  root.
• It increase the length of stem and root.

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INTERCALARY MERISTEM

• It is present at the base of leaves and
  internodes.
• It helps in growth of leaves and internodes.

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LATERAL MERISTEM

• It occur on the side of the stem root.
• It increase the girth of stem and root.

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PERMANENT TISSUE

• The plant tissue where cells have lost the
  ability to divide and have taken a permanent
  shape , size and function is called permanent
  tissue.

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SIMPLE PERMANENT TISSUE

• The tissues in which permanent cells are similar
  in structure origin and function

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• It is simple permanent tissue having thin walled
  living cells.
• Cell wall is made up of cellulose..

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COLLENCHYMA

• It is the simple permanent tissue made up of
  living cells which are irregularly thickened at
  the corners.
• These cells have very little intercellular space
  b/w them.

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SCLERENCHYMA

• It is simple permanent tissue made up of dead
  cells.
• The cell wall of this tissue is thickened and are
  made up of lignin.
• They is no intercellular space b/w them.

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COMPLEX PERMANENT TISSUE

• It is made up of more than one type of cells
  which work together to perform a particular
  function.

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XYLEM

• It is complex permanent tissue which take part in
  transport of water and minerals to different
  parts of plants.
• COMPONENT OF XYLEM
• TRACHEIDS
• XYLEM VESSELS
• XYLEM FIBRE
• XYLEM PARENCHYMA

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PHLOEM

• It is complex permanent tissue which transport
  food from leaves to other parts of plants.
• COMPONENT OF PHLOEM
• SIECE TUBES
• COMPANION CELL
• PHLOEM FIBRE
• PHLOEM PARENCHYMA

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THANKYOU