GENBIO - Plant Tissue Flashcards
TWO TYPES OF PLANT TISSUE
- Meristematic Tissue
- Permanent Tissue
Cells are found in meristems, which are plant regions of continuous cell division and growth.
Meristematic Tissue
Tissue found in the growing region of a plant
Meristematic Tissue
KINDS OF MERISTEMATIC TISSUE
- Apical Meristem
- Lateral Meristem
- Intercalary Meristem
Found in the root and shoot tips that increases the length.
Apical Meristem
They enable the plant to extend upwards and downwards.
Apical Meristem
They are present laterally in the non- flowering plants.
Lateral Meristems
Due to their division the root and stem grow in thickness or girth.
Lateral Meristems
Lateral Meristems are found in ____________.
- Vascular cambium
- Cork cambium
These tissues are found in between permanent tissue.
Intercalary Meristem
They are found in
monocotyledonous stem and leaf sheath.
Intercalary Meristem
They are at the bases of leaf blades and at nodes.
Intercalary Meristem
Intercalary Meristem enables the
Monocot leaf blade to
increase in length from
the leaf base
Tissues formed from meristematic tissue slowly mature, have lost the ability of division, and get differentiated.
Permanent Tissue
Three Types of Permanent Tissue
- Simple tissue
- Complex tissue
- Special tissue
Found in the soft part of a leaf flower.
Simple Tissue
Made up of a single cell type
Simple Tissue
Simple permanent tissue is further classified into three types. What are these?
- parenchyma
- collenchyma
- sclerenchyma
The cell is thin-walled, may be spherical oval , cubical or cylindrical in shape.
Parenchyma
It has numerous chloroplast called chlorenchyma found in palisade and spongy parenchyma of leaves.
Parenchyma
It is the large spaces which stores gases.
Aerenchyma
The cells are living and have large vacuoles in their cytoplasm
Parenchyma
Function of Parenchyma
✓ Repair
✓ Photosynthesis
✓ Storage
Tissue usually found in the stem just below the epidermis.
Collenchyma
Cells of these tissues looks elongated or cubical, thick-walled.
Collenchyma
Chloroplast is less in this tissue.
Collenchyma
Function of Collenchyma
✓ Mechanical support
✓ Elasticity
✓ Strength
✓ flexibility
They are dead tissues, very hard and rigid in texture.
Sclerenchyma
They are thick-walled with various size and shapes
Sclerenchyma
Function of Sclerenchyma
✓ mechanical support
✓ Rigidity
✓ Aids in water and food
transport
✓ Protection
They are made up of various types of cells carrying out distinct functions
Complex Tissue
Complex permanent tissue is further classified into two types:
- Xylem
- Ploem
Their structure is different but individually they collect together to perform similar function
Complex Tissue
Cells of certain tissues get modified to secret some substance
Special Tissue
Special permanent tissue is further classified into
two types:
- Glandular tissue
- Laticiferous tissue
Tissue that have different types of glands that have secretory or excretory products in them.
Glandular Tissue
In Glandular Tissue, the gland is situated on the ________.
Epidermis
Tissues with long, thin walled and branched cells.
Laticiferous Tissue
Laticiferous Tissue produce whit milk like secretion called
Latex
It carries water and minerals from roots to other parts of the plant.
Xylem
It is composed of dead cells.
Xylem
It transports food and organic nutrients from leaves to other parts of the plant.
Ploem
It is composed of living cells.
Ploem
