🎯 Knowledge Check
Biology — Tissues
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तमसो मा ज्योतिर्गमय · Est. 2025
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Biology | Biology Class 9
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Frequently Asked Questions
Tissues are groups of similar cells that work together to perform a specific function in plants and animals.
The term 'tissue' was coined by Bichat.
Plant tissues are of two types: meristematic and permanent tissues.
These are tissues with actively dividing cells responsible for plant growth.
Apical, intercalary, and lateral meristem.
It is found at root and shoot tips and causes increase in length.
It increases the girth or thickness of stems and roots.
Permanent tissues are made of mature cells that have lost the ability to divide.
Simple permanent and complex permanent tissues.
Tissues made of similar cells performing the same function like parenchyma, collenchyma, sclerenchyma.
Parenchyma is a living simple permanent tissue that stores food and provides support.
Collenchyma provides flexibility and mechanical support to the plant.
Sclerenchyma is a dead supporting tissue with lignified walls providing rigidity and strength.
Xylem and phloem that help in transport of materials in plant are complex tissues.
Xylem transports water and minerals from roots to other parts of the plant.