Tissues Class 9 Notes PDF

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Tissues Class 9 Notes - Description

Greetings to all, Here We have provided Tissues Class 9  Notes PDF to assist all the students. Science Chapter 6 this CBSE note contains CBSE Key Notes, CBSE Revision Notes, Short Key Notes, images, diagrams of the complete Chapter 6 titled Tissues of Science taught in class 9. If you are a student of class 9 who is using the NCERT Textbook to study Science, then you must come across Chapter 6 Tissues. After you have analyzed the lesson, you must be skimming for notes to memorize. From Pdffile you can get complete Chapter 6 Tissues class 9 notes in one place.
For a better interpretation of this chapter, you should also see NCERT Solutions for Class 9 Science Chapter 6 Tissues. CBSE Class 9 Science Notes Chapter 6 Tissues Pdf free download is part of Class 9 Science Notes for Quick Revision.

1. Board CBSE
2. Textbook NCERT
3. Class Class 9
4. Subject  Notes
5. Chapter Chapter 6
6. Chapter Name Tissues
7. Category CBSE Revision Notes

Tissues Class 9 Notes PDF- Important Points

Tissues are a group of cells that combine together to perform a particular function.
Plant tissues
Plant tissues are of various types and are made up of similar types of cells. They are different from animal tissues since there are several differences between animal and plant cells.
Animal tissues
Animal tissues are made up of animal cells. These tissues are usually not rigid since the cells do not have cell walls.
Plant Tissues
Meristematic tissues
Meristematic tissues are seen in plants. They are primarily made up of rapidly dividing cells. They are the growing tissues of the plant.
Permanent tissues
Permanent tissues arise from the meristematic tissue and have structural and functional properties. Permanent tissue can be made up of either living or dead cells.
Differentiation is the process by which the meristematic tissues develop into different types of permanent tissues based on the location and requirement of the plant.
Apical meristem
Apical meristem is present on the apex of the plant shoot and root. They are rapidly growing tissues and aid in increasing the height of the plant.
Lateral meristem
Lateral meristem is present on the lateral walls of the stem. They help in the horizontal growth of the plant and increase the stem girth.
Intercalary meristem
Intercalary meristem can be found between the nodes of the stem and the base of the leaf. They help in branching.
Simple permanent tissues
These are tissues that are made up of only one type of cell. They usually have a structural role.
Complex permanent tissues
Complex permanent tissues are made by a combination of different types of cells. These cells work together to perform a specific task.
Parenchyma tissues are made up of loosely packed cells with thin cell walls and large intercellular spaces. They are live cells and help in support and storage. Two types; Chlorenchyma and Arenchyma.
Collenchyma tissues are made up of live cells which have irregularly thickened corners and thus, have decreased intercellular spaces. They help in bending various parts of the plant without breaking.
Sclerenchyma tissues make up the hard and stiff parts of the plant. They are made up of dead, long, and narrow cells. They almost have no intercellular space as the walls are thickened due to the presence of lignin.
Phloem is made up of the following components – sieve tubes, companion cells, phloem parenchyma, and phloem fibers. Phloem conducts food in both directions. Among all the components, phloem fibers are the only dead cells.
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