Metaxylem element, dicot root vessels and tracheids endodermis

 Metaxylem element, dicot root vessels and tracheids endodermis

 

Metaxylem elements that possess annular, spiral and other types of non-column thickenings are usually dense.  Vessels and Tracheids of Dicot Root T.S. Polygons appear in . It is absent in many dicot roots.  If current, the pith is small.  It contains parenchyma cells that store food and waste products.

 Reasons for identification: (i) presence of root hairs, (ii) endodermis with Casparian strips (iii) absence of pith, (iv) less than eight radial bundles, (v) axillary xylem.  Internal Structure of Monocot Root: The internal structure of monocot root can be studied in the Transverse Section (Ts) of Maize Root, Allium Root and Grass Root.

 Normal secondary growth is absent in the monocot root.  The various structures present in the monocot root from outside to inside are epiblema, cortex and exodermis, endodermis, pericycle vascular strand and pit.  Epiblema: This is the outermost single layer of thin-walled cells.  Cells do not enjoy the intercellular space.

 Cuttings and cuticles are absent.  Some of the epiblastoma cells have tubular outgrowths called root hairs.  Root hairs have a sticky pectic layer in the exterior which helps them to pass through the soil intersects for the absorption of water and mineral salts.

 The old root hairs shrink and shed.  Along with this, epiblema cells also disintegrate.  Rarely, they can be obese.  Intercellular spaces are absent.  Endodermal cells form bands of thickening called cosperian strips, lignified and suberized (Esau, 1965).  in T.S.  They appear as lenticular thickenings on the radial walls.  Casparian strips do not allow for wall-to-wall movement from the cortex, as they are present on both the radial and tangential walls of the pericycle and vice versa, although Ts.  They are visible only on the radial walls.  Pericycle: This is the outer boundary of the stele or vascular strand.

 May use psychological tools called defense mechanisms

 Avoidance Techniques Rescue Means and Educational Outcomes The result is frustration or choice.  To reduce this type of mental distress, a person takes some indirect measures, which are called defense mechanisms.  In this state, the person does not unconsciously lose his self-esteem, does not lose his 'self' and does not develop a feeling.  Inferiority

 All methods or means are resorted to which are called rescue techniques.  To understand the concept of avoidance techniques, we have to give our own definitions given by various psychologists.

 To avoid the effects of frustrations, a person may use psychological tools that have been described as defense mechanisms, mental mechanisms, and adjustment mechanisms.  "Psychological practices that a person intends to do to avoid frustration or failure. 

These practices are called defense techniques, mental exercises or adaptation techniques. ST Chauhan: "Raksha tantra is any permanent structure of the psyche that helps a person to learn about something unpleasant.  enables us to escape from awareness.