Complex Permanent Tissue | Hindi | Xylem | Phloem | Structural Organisation In Plants | Biology

Permanent Tissue
Have you ever wondered how the tips of tall plants get water that is absorbed by the roots, deep down in the ground? Is there any special mechanism by which this happens? Well! It is not exactly a mechanism, but a group of specialized cells and tissues that help to carry out this function. You have already learned about one type of plant tissue, i.e. the Meristematic Tissues(Read). Plants also have other types of tissue called the permanent tissue in them. It is one of these tissues that help in the movement of water from the root to the stem.
Permanent Tissue in Plants
In simple words, the permanent tissues in a plant are those tissues that contain nondividing cells. The cells are also modified to perform specific functions in the plants. The cells of the permanent tissue are derived from the meristematic tissue.

The permanent tissue cells are also fully differentiated. The cells are large and a definite shape and size. You can see intercellular spaces being present in between the cells. Large vacuoles are also present inside these cells. The metabolism that occurs in the cells of the permanent tissue is fairly at a lower rate.

The permanent tissue in plants mainly helps in providing support, protection as well as in photosynthesis and conduction of water, minerals, and nutrients. Permanent tissue cells may be living or dead.
Types of Permanent Tissues
Permanent tissues can be classified into two types. They are:

Simple permanent tissue
Complex Permanent tissue
Simple Permanent Tissues
These tissues are simple. They are made up of only one type of cell. Here, all the cells that make up the tissue are similar and have the same structure, with the same type parts. Simple permanent tissues are again classified into three main types. They are parenchyma, collenchyma, and sclerenchyma.

Parenchyma – The cells of this tissue are living, with thin cell walls. Cells can be oval or round in shape. They have a large central vacuole and a dense cytoplasm. The parenchyma tissue is located in the soft parts of the plant such as cortex and pith. It mainly acts as a packing tissue, providing mechanical support. It also helps in the storage of food. Based on the specific functions, parenchyma can be further classified into Aerenchyma and Chlorenchyma.
Collenchyma – These cells are living cells and have an elongated shape. The corners of the cell wall are thickened. There is very little intercellular space present. The collenchyma tissue can be located in the leaf stalks, below the epidermis etc. Its main function is to provide flexibility to the plants as well as mechanical support.
Sclerenchyma – The cells of the sclerenchyma tissue are dead. The cell wall is very thick due to the deposition of lignin. The cells of this tissue can be in different shapes and sizes. They are generally located in the leaf veins, hard coverings of the seeds and can also be found surrounding the vascular bundle. The main function of the sclerenchymatic tissue is to provide rigidity and mechanical support to the plant body. They also make the plant stiff and hard.
Complex Permanent Tissue
The complex permanent tissues are made up of more than one type of cell. They coordinate together to perform the same specialized functions in the plant body. They are classified into two types – Xylem and Phloem

Xylem – The xylem tissue is responsible for the conduction of water and minerals from the roots to the leaves and stem. It also provides support to the plants. It has four elements. They are tracheids, vessels, xylem parenchyma and xylem fibres.
Phloem – This complex permanent tissue helps in the translocation of food that is prepared by photosynthesis in the leaves to various parts of the plant. Phloem consists of four elements. They are sieve tubes, companion cells, phloem fibres and phloem parenchyma.
#Xylem #Phloem
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[KeshavArora-nbgn]

Best video of xylem and phloem in whole YouTube

[RishabhSingh-zkbi]

I appreciate the way in which you teach.

One of the best video on YouTube for tissue

[kanishka]

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[vedikasharma]

Wow....my doubts are crystal clear now ✨awsm explanation 😊
Thank you mam

[diyashet.]

Ma'am ur explanation was too good had lots of confusion with this topic now cleared

[hanipatel]

Mam your simple permanent tissue vidio link please

[reetatiwari]

Xylem जल ले जाता हैं
Phloem फल ले जाता हैं

[zenabparveen]

I understood very well after watching the video, there is no need for tuition, thanks for teaching. ❤❤

[saghana]

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[RahtuLal-co]

Woww mam awsm explaination.. 😊❤
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Apne bhot acha smjhaya.. Sare bio lecture aap hi lia kro

[luckymishra]

Mam you missed about tha sieve tube which is in our syllabus so pls give the explanation video Tq 👀

[gkknowledge]

Mam aapke bahut mote baal pata nahi app log kya sochte hai

[romapashteen]

Mam there is a question from my side "some people says that Xylem tissue is made up of dead cells" can you tell me how is it possible for Xylem tissue to transport water and minerals from roots to leaves we know that they are already dead.

[abhishekkaur]

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[rounakkumaryadav]

Thank you ma'am you are explain great 👍👍 my school teacher in teach not good in bio and tution teacher same school not teach good samajh me nahin aata kya padha rahe hai thank you ma'am you great teacher

[sanghitaroy]

Question: why do seive tubes do not have nucleus or ribosomes

[Rukshar_khatun-bd]

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[yogeshsuthar]

Mam aapne simple permanent tissue ke bare Main video nhi bnayi kya?