Question
Question: Name the conducting tissues in plants....
Name the conducting tissues in plants.
Solution
Conducting tissues or the vascular system in plants is formed by two types of complex tissue which are named as Xylem and Phloem. These both are known to form the vascular bundles in plants.
Complete answer:
1.Xylem- It is conducting tissue found in plants which are known for the function of transport of water and some important mineral ions from the soil via roots to the other aerial parts of the plant I.e. stem and leaves. This type of flow from roots to other parts of the plant is known as unidirectional flow.
2.Phloem- It is a conducting tissue which is known to transport food material from leaves which are formed via the process of photosynthesis to the other parts of the plants. This type of transport of food materials via phloem is bidirectional.
Based on the presence or absence of cambium, a supporting structure these are further divided as:
a.Open vascular bundles- In this type vascular cambium is present between phloem and xylem. Because of the presence of these plants can produce secondary xylem and phloem. These are found in dicot stems.
b.Closed vascular bundles- In such type vascular cambium is absent between xylem and phloem. Such a type does not show any secondary growth. This arrangement is found in monocots.
Based on the arrangement of xylem and phloem:
a.Radial arrangement- In such type of arrangement xylem and phloem are alternately seen at different radii in the vascular bundles.
b.Conjoint arrangement- In such types of vascular bundles xylem and phloem are situated at the same radius of the vascular bundles. These types of vascular bundles are very common in leaves and stems.
Note: The vascular system or well known as conducting system in plants either in monocots and dicots is formed by these two important conducting tissues I.e. xylem and phloem with some slight changes in them. These are the major tissue for the transport function in plants.