1. Simple Tissue Origin from same point Morphologically are similar
Functions are similar

2. Types of Simple Tissue
Parenchyma
Collenchyma
Sclerenchyma

3. Parenchyma They are living cells
Cell wall thin which is composed of cellulose
Individual cell is known as parenchyma cell
They may be oval, round or polygonal
Nucleus is conspicuous and large
Do physiological function

4. Origin of parenchyma tissue
Primary meristem
Ground meristem
Procambium
Cambium
Cork cambium

5. Location Epidermis Cortex Pith
In vascular bundle as xylem parenchyma and phloem parenchyma
Cambium (fascicular and cork cambium)

10. Types of parenchyma
Chlorenchyma
Aerenchyma
Idioblast
Prosenchyma

11. Functions
Do physiological functions viz. photosynthesis, respiration and other metabolic activities
Help in floating as in hydrophyte
Store food material

12. Collenchyma Tissue Living tissue
More or less elongated thick cell wall with non lignified
Cell wall composed of cellulose and hemicellulose

15. Origin of Collenchyma tissue
Primary meristem
Ground meristem
Procambium
Cambium
Cork cambium

16. Location
Hypodermis
Cortex
Bundle cap

17. Type of Collenchyma
Angular- Thickenings are primarily at the corner or angular position
Lacunar or tubular collenchyma- Thickennings are restricted to the walls of the regions bordering air space
Plate or Lamellar collenchyma- Thickennings occur chiefly on the tangential walls and lesser in the radial walls. As a result, cells appear like plates.

19. Location or Distribution
Found in hypodermis
Both sides of the vascular bundle in leaves
Some time in bundle cap

20. Functions Effective mechanical tissue
Provide tensile strength to the growing organs during development
Protect VB of leaves by forming bundle sheath
Do physiological activities like photosynthesis

21. Sclerenchyma Tissue Hard tissue Non-living
Cell walls are very thick having lignin

22. Origin
Procambium
Cambium
Some time ground meristem

23. Type
Fiber
Sclereids
Fibers are two types- Xylary and extra xylary

24. Xylary Fiber Libriform- very thick secondary wall havingsimple pits
Fiber tracheid-Relatively thin wall and bordered pit

25. Distribution

26. Functions
Mechanical strength
Conduction of water and minerals

27. Sclereids
Non presnchymatous
Commonly called stone cell

28. Types
Brachysclereids (stone cell) –short roughly isodiametric sclereids found in cortex, pith, phloem and some time flesh of fruit
Macrosclereids-Elongated columner e.g. seed coat of legume
Osteosclereids-Bone or barrel shaped commonly found in seed coates of several monocots
Astrosclereids-These are star shaped found in leaves of Nymphea
Trichosclereids-Hair like found in aerial roots and leaves of olive