muscle, nervous, plant tissues

MUSCLE TISSUE

SKELETAL - voluntary

SMOOTH - involuntary/ internal organs

CARDIAC - involuntary

NERVOUS TISSUE

Process and send information to other neurons or the effect or tissues

Meristematic tissue

are a group of young cells that are in a continuous state of division

Permanent tissue

may be defined as a group of living or dead cells formed by meristematic tissue and have lost their ability to divide and have permanently placed at fixed positions

axon

impulses away from the cell body

dendrite

receives impulses

Apical meristems

- causes primary growth (lengthening)

- occurs at the tips of shoots and roots

- produces new leaves and flowers

lateral meristems

- causes secondary growth (widening)

- occurs at the cambium

- produces bark on trees

SURFACE OR DERMAL Tissue

• IT COVERS AND PROTECTS THE SURFACE OF THE DIFFERENT PLANT ORGANS.

• THE EPIDERMIS OF THE LEAF IS AN EXAMPLE OF THIS TISSUE.

A.PARENCHYMA CELLS

B.COLLENCHYMA CELLS

C.SCLERENCHYMA CELLS

FUNDAMENTAL OR PERMANENT TISSUES

PARENCHYMA CELLS

- ARE LARGE, THIN -WALLED CELLS WITH A CENTRAL VACUOLE

- CONTAIN PLASTIDS FOR FOOD STORAGE AND ARE

FOUND IN THE LEAVES, STEMS, ROOTS, FLOWERS, AND FRUITS.

COLLENCHYMA CELLS

- HAVE THICK CELL WALLS AND FUNCTION MAINLY FOR SUPPORT

- THEY ARE FOUND IN THE STEM (BENEATH THE EPIDERMIS) AND IN THE LEAF STALK OR PETIOLE

SCLERENCHYMA CELLS

- HAVE THICK SECONDARY WALLS WITH LIGNIN, MAKING THEM HARD AND TOUGH .

- NONLIVING AND PROVIDE SUPPORT TO MATURE PARTS OF THEPLANT

VASCULAR TISSUES

- THESE ARE COMPLEX CONDUCTING TISSUES THAT EXTEND FROM THE ROOTS TO THE LEAVES OF PLANTS

- Xylem (water) & Phloem (sugar)