Question

difference between meristematic tissue and permanent tissue?​

Answer 1

Answer:

Meristematic tissue is found in the tips of roots, stems and branches.

Meristematic tissue is found in the tips of roots, stems and branches.Permanent tissue is found in the bark, soft cells of plants, and leaf of the plant.

Explanation:

types of meristematic tissue

there are three types of meristematic tissue:

1. apical meristem: it is located on the tip of the root and stem which helps in the growth of plants. it is further divided into shoot apical meristem and root apical meristem.

2. primary meristem: there are three kinds of primary meristems. protoderm(develops into epidermis), procambium( develops into primary xylem and phloem), ground meristem (develops into the cortex and the pith).

3. secondary meristem: it is also called a lateral meristem because it is around the established cell that helps to grow laterally. there are two types of lateral meristems, vascular cambium (produces secondary xylem and secondary phloem), and cork cambium (produces the periderm which replaces the epidermis).

Types of Permanent Tissue

There are two types of permanent tissues.

1. Simple Permanent Tissue: They are called simple permanent tissue as they are composed of only one type of cell. All the cells which make simple permanent tissue is made up of the same tissue and have a similar structure. Further, it is divided into three types, namely, parenchyma, collenchyma, and sclerenchyma.

2. Complex Permanent Tissue: It is composed of more than one type of cell and helps to perform some special functions. Some of the examples are xylem and phloem.

Answer 2

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Meristematic Tissues Permanent Tissue

Capacity to divide

Can divide Cannot divide

Cell Composition

Undifferentiated cells. Differentiated cells

Simple/Complex tissues

Always simple tissues, composing of one type of cell only Can be simple or complex tissue.

If complex, contains more than one type of cells

Nature of cells

Always Living cells Can be non-living(Sclerenchyma) or living(Parenchyma)

Cytoplasm in cells

Contains dense cytoplasm. May or may not contain cytoplasm

Prominent nucleus

Always Prominent in some cells (Parenchyma) while absent in others(Sclerenchyma)

Pace of cell division

Rapid Completely differentiated,. do not divide

Size and shape of cells

1.Size – small

Shape – isodiametric

Lumen – large

2 .Size – large

Shape – varies

Lumen – very narrow or wide

Cell arrangement

Compactly arranged.

No intercellular spaces

Loose in some(Parenchyma)

Compact in some(Sclerenchyma)

Vacuoles

Usually absent Vacuoles present in living cells. But dead cells lack protoplasm

Metabolic rate

Very high. Very less or no metabolism at all