Bioniac

In this post we are going to discuss about Secondary Growth. For the post of Plant Tissue System and Anatomy of Monocot and Dicot System, Click  here . Secondary   Growth  : •The growth of the roots and stems in length with the help of apical meristem is called the primary growth.  •Apart from primary growth most dicotyledonous plants exhibit an increase in girth. This increase is called the secondary growth. •The tissues involved in secondary growth are the two lateral meristems: vascular cambium and cork cambium. For the post of Plant Tissue, Click  here . Vascular   Cambium  : •The meristematic layer that is responsible for cutting off vascular tissues – xylem and pholem – is called vascular cambium.  •In the young stem it is present in patches as a single layer between the xylem and phloem. Later it forms a complete ring. <>Formation of cambial ring : •In dicot stems, the cells of cambium present between primary xylem and primary phloem ...

In this post we are going to discuss the Plant Tissue System and Anatomy of Monocot and Dicot System. For the post of Plant Tissue, Click  here . Tissue   System  : •Tissues vary depending on their location in the plant body.  •Tissue structure and function would also be dependent on location.  •On the basis of their structure and location, there are three types of tissue systems. These are the epidermal tissue system , the ground or fundamental tissue system  and the vascular or conducting tissue system . Epidermal   Tissue   System  : •The epidermal tissue system forms the outer-most covering of the whole plant body and comprises epidermal cells, stomata and the epidermal appendages – the trichomes and hairs.  •The epidermis is the outermost layer of the primary plant body.  •Epidermis is made up of elongated, compactly arranged cells, which form a continuous layer.  •Epidermis is usually single ￾layered.  •Epidermal cel...

In this post we are going to discuss about Plant Tissue. For the post of Morphology and Anatomy of Frog, Click  here . Plant   Tissue  : •A tissue is a group of cells having a common origin and usually performing a common function.  •A plant is made up of different kinds of tissues.  •Tissues are classified into two main groups, namely, meristematic and permanent tissues based on whether the cells being formed are capable of dividing or not. For the post of Morphology and Anatomy of Cockroach, Click  here . Meristematic   Tissue  : •Growth in plants is largely restricted to specialised regions of active cell division called meristems (Gk. meristos: divided).  •Plants have different kinds of meristems.  •The meristems which occur at the tips of roots and shoots and produce primary tissues are called apical meristems.  •Root apical meristem occupies the tip of a root while the shoot apical meristem occupies the distant most region of ...