food material in pharenchyma
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Answer:
The food material in parenchyma is chlorenchyma . It contains chlorophyll and performs photosynthesis .
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Meristematic tissue : A Meristematic tissue is a group of young cells that have the capacity of active cell division. This tissue is found in all the growing parts of plant, such as root tip, shoot tip etc.
Ground tissue: The ground tissue arises from a ground tissue meristem and consists of three simple tissue (i) parenchyma, collenchyma, and sclerenchyma. These cells are classified according to their nature.
Apical meristem: Apical meristem is found at the apices of stem, root, and their branches. It consists of a group of cells which give rise to primary permanent tissues that together constitute the primary body of plant. Due to growth of apical meristem, the stems and roots increase their length.
Lateral meristem : Lateral meristem occurs on the sides and is responsible for increase the diameter of the plant roots and stem. These tissues are also responsible for growth in thickness by the addition of secondary tissue and this process is called secondary tissue.
Parenchyma : Parenchyma is a simple, permanent living tissue which is made up of unspecialized thin-walled cells. The cells if parenchyma tissue may be oval, rounded or polygonal in outline. Their wall is made up of cellulose walls. Parenchyma is found universally in all the plants.
Collenchyma: The cells of collenchyma are living, it us elongated with cellulose thickness at the corners. They are found as longitudinal strips. Collenchyma cells appear circular, oval or angular in transverse section. Collenchyma tissue is usually found below the epidermis in stem, petiole and stalks of leave.
Sclerenchyma: It is also a simple permanent tissue. The cell of this tissue are dead. These are long, narrow with tapering ends. Their cell wall are thickened due to lignin which is a chemical substances that acts as a cement hardens them. The tissues of the cell occurs in the veins of leaves and in hard covering of seeds and nuts.
Xylem and phloem: Xylem is a complex tissue. The cells are thick and many of them are dead cells. Xylem is mainly concerned with the conduction of water
and minerals. It also provides mechanical support to the plant.It consist of a four type of cells (i) xylem vessels, trecheids, xylem fibres and xylem parenchyma.
Phloem is the chief food conducting of plants. Unlike xylem,materials can move in both directions. Phloem is also responsible for transport of food prepared by leaves to other parts of plant. It consists of a four type of element - sieve tubes, companion cells, phloem
parenchyma, and phloem fibres
Epidermis: It is the outermost protective layer of plant organs. It is usually single layered but in the leaves of some plants growing in dry habitats. This is to protect the plants from water lose. It covers the entire surface of the plant.