Question

differentiate between epidermis and bark

Answer 1

The differences between bark and epidermis are as follows:

Epidermis:

• Epidermis is a protective tissue formed by one cell layers over various parts of the plant body like leaves, flowers, stem and root.

• In case of leaves , the epidermis is covered by a layer of waxy substance named Cutin. This layer is called Cuticle.

• Cells of epidermis are elongated and flattened , without any intercellular space.

Bark:

• The bark is also a protective layer formed after the death of the cells outside the layers of the Vascular Cambium.

• It contains more than one layer of cell, hence involves the epidermis, cork, phelloderm,etc.

• The cell morphology varies according to the layer involved. There is intercellular space between the dead cells in order to allow air exchange.

Hope It Helps.

Answer 2

The differences between Epidermis and Bark are as follows:

EPIDERMIS:

• Epidermis consists of a group of cells that covers leaves, flowers,      roots and stems.

• Epidermis are living cells that are found in single layer.

• Epidermis forms a boundary between the plant and the external world.

 

BARK:

• Bark is the dermal tissue formed from the meristem.

• Bark forms several layers above the epidermis.

• Woody stems and some other stem structures produce a secondary covering called the secondary meristem or periderm or cork cambium that replaces the epidermis as the protective covering.