Plant cells and tissues are organized into three main organ groups - roots, stems, and leaves. These organs contain tissues that work together for common functions. Plant tissues are classified based on their structure and function. There are several main types of plant tissues including meristematic tissues for growth, parenchyma tissues for photosynthesis and storage, collenchyma and sclerenchyma tissues for structural support, xylem tissue for water and nutrient transport, and phloem tissue for food transport throughout the plant.

1. Plant cells and tissues
The Body’s Organization
Plant System(Tissues)
Abstract
Types of plant cells

2. Abstract
Plants are composed of three major organ groups: roots,
stems and leaves.
These organs are comprised of tissues working together for a
common goal (function).
Plant tissues are characterized and classified according to
their structure and function.
Plant cells have unique structures, including a central
vacuole, plastids, and a cell wall.

3. Organism
Organs
Tissue Systems
Tissues
Cells
The Body’s Organization

4. Plant system
Note:
Epidermis is the
single exterior layer
that protects the
stems, leaves,
flowers, and roots.
The outside surface
of the epidermis
tissue is usually
covered with a
waxy substance
called cutin, which
reduces water loss.

5. Types of plant cells
Meristematic
Parenchyma
Collenchyma
Sclerenchyma
Xylem
Phloem

6. Meristematic Tissues
Meristematic tissues are cells or group of cells that have the ability to
divide.
These tissues in a plant consist of small, densely packed cells that can
keep dividing to form new cells.
Meristems give rise to permanent tissues and have the following
characteristics:
-the cells are small, the cells walls are thin, cells have large nuclei,
vacuoles are absent or very small, there are no intercellular spaces.

7. Parenchyma, the most abundant ground tissue, consists of thin-walled,
metabolically active cells that carry out a variety of functions in the
plant, including photosynthesis and storage
Parenchyma

8. Collenchyma tissue is composed of narrow, elongated cells with thick primary
walls. Collenchyma cells provide structural support to the growing plant body,
particularly shoots, and their thickened walls are nonlignified, so they can
stretch as the organ elongates. Collenchyma cells are typically arranged in
bundles or layers near the periphery of stems or leaf petioles.
Collenchyma

9. Sclerenchyma consists of two types of cells, sclereids and fibers. Both have
thick secondary walls and are frequently dead at maturity. Sclereids occur in a
variety of shapes, ranging from roughly spherical to branched, and are widely
distributed throughout the plant. In contrast, fibers are narrow, elongated cells
that are commonly associated with vascular tissues. The main function of
sclerenchyma is to provide mechanical support, particularly to parts of the
plant that are no longer elongating.
Sclerenchyma

10. Xylem is a structurally complex tissue that conducts water and
nutrients from the roots to all parts of the plant. The xylem is
comprised of a series of long tubes made up of shorter vessel
members. In woody plants, the xylem tissue becomes the wood.
Xylem

11. Phloem tissue conducts food and metabolites from photosynthesis
throughout the plant, including down to the roots.
Phloem

12. Good bye 
Done by / Ahmed Elwan
Group 6
Alsayed Ahmed Alsayed
Mohamed Salah Ismail Mohamed
Amr Alsayed Abdul Hady
Ahmed Elwan Abdul Fattah Abo Hamad