Tissues Blog 2
Hello Learners,
In previous blog, we learned about the significance of division of labour in multicellular organisms. The structural organisation of organs and organ systems is far more specialised and localised in complex animals than even in very complex plants. This fundamental difference reflects the different modes of life pursued these two major groups of organism particularly in their different feeding method. They are differently adapted for sedentary existence on one hand (plants) and active locomotion (animals) contributing to this difference in organ system design.
Today, we will discuss more about PLANT TISSUES.
At the end of today's topic, learners will be able to
(i) define meristematic tissue.
(ii) explain the importance of meristematic tissue in the plant body.
(iii) tell the location of meristematic tissue in the plant body.
(iv) draw the location of meristematic tissue in the plant body.
PLANT TISSUE
Plant tissues are divided into two main types-
(i) Meristematic tissues, and
(ii) Permanent tissues
(Draw this flow chart in your note book)
Meristematic Tissue
The tissue
which has the capacity to divide. It is present only at growing regions.
Depending upon the position where they are present, meristematic tissues are
classified into three categories-
1. Apical meristem- present at the tips
of roots and shoots. They are responsible for increase in length of the plant.
2. Intercalary meristem- present at the
base of internodes. They are responsible for increase in length of the
internode.
3. Lateral meristem- present on the sides
parallel to the long axis of root, stem and branches. They are responsible for
increase in width or girth of the organs. 
(Draw this diagram)
Characteristic Features of Meristematic
Tissues
(i)
The
cells are similar in structure (spherical, oval or polygonal).
(ii)
Cells
are compactly arranged generally without intercellular spaces between them.
(iii)
Each
cell contains a prominent nucleus and dense cytoplasm.
(iv) Cell walls are thin and cellulose.
(v)
Vacuoles
are generally absent.
NOTE: The cells formed by meristematic tissue take up a specific role and lose their ability to divide. As a result, they form a permanent tissue. This process of taking up a permanent shape, size and function is called differentiation.
https://www.youtube.com/watch?v=-rGetleD-DINOTE: The cells formed by meristematic tissue take up a specific role and lose their ability to divide. As a result, they form a permanent tissue. This process of taking up a permanent shape, size and function is called differentiation.
https://www.youtube.com/watch?v=PoHVGlgPnrk
Home Assignment
1. Complete the notes given in the blog.
2. Draw well labelled diagram of the location of meristematic tissue in the plant body.
Good morning ma'am I am jai singh negi
ReplyDeleteGood morning sir I am Abdul Qadir of class 9A
ReplyDeleteGood morning sir. My name is Mohit sagar
ReplyDeleteGood Morning Sir, My name is Yashowardhan Chaudhary
ReplyDeleteGood morning sir
ReplyDeleteI'm pranshu wadhwa
Good morning sir..maahir Jain 9 A
ReplyDeleteGood Morning Sir
ReplyDeleteI am Kanav Ajmani
Good morning sir,my name is Kartikeya Balonda.
ReplyDeleteGood morning sir I am Darsh Kumar
ReplyDeleteGood Morning Sir ! I'm Devansh Kanojia .
ReplyDeleteGood morning sir This is Joel John
ReplyDeleteGood morning sir! this is Alan Alexander.
ReplyDeleteGood morning sir! This is Karmanya Sharma.
ReplyDeleteGood morning sir My name is sidharth singh
ReplyDeleteGood morning sir I am bhavishya Tandon class 9a
ReplyDeleteGood morning sir. This is Sabeer Duggal.
ReplyDeleteGood morning sir my name is ansh Saini 9A
ReplyDeleteMy name is Mohit sagar
ReplyDeleteGood Morning sir
ReplyDeleteShiv Gangwar here.
Good morning sir
ReplyDeleteMy name is Arnav Singh Juneja
Ayaan Ahmed
ReplyDelete9A
Good morning sir I am Vyan Sharma.
ReplyDeleteMy name is Kanishk Sharma
ReplyDeleteGood morning sir I am Aaditya Parwal class 9A
ReplyDeleteGood morning, Saksham Kumar
ReplyDeleteGood morning ma'am I am saud khan 9a
ReplyDeleteGood morning sir ! This is dhruv srivastava
ReplyDeleteGood morning sir my name is Mohammad umar
ReplyDeleteGood morning sir I am Aryamann Singh
ReplyDeleteMy name is harsh 9 a
ReplyDeleteGood morning sir my name is Suryansh Sinha
ReplyDeleteGoodmorning Sir...Aaditya A. James 9A
ReplyDeleteGood morning. I am Anshul Vijay Nitnaware
ReplyDeleteGood morning sir I am Ryan Mathew 9-A
ReplyDeleteGod morning sir. ( devesh rawat)
ReplyDeleteGood morning sir. I am Dario George.
ReplyDeleteGood morning sir raunak singh here
ReplyDeleteGood morning ma'am I am Ibrahim Kazmi
ReplyDeleteMy name is Tanishq rajput
ReplyDeletegood morning sir my name is akshat jaiswal
ReplyDeleteGoodmorning Sir my name is Amaanullah
ReplyDeleteThis comment has been removed by the author.
ReplyDeleteThis comment has been removed by the author.
ReplyDelete