Chapter 4 of 9
Syllabus
Tissues And Other Levels Of Organization — Syllabus
NIOS · Class 12 · Biology
What Tissues And Other Levels Of Organization covers in NIOS Class 12 Biology: 4 topics, for the 2026-27 session.
45 questions25 flashcards5 concepts
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4 Topics · NIOS Class 12 Biology · 2026-27
Topics in Tissues And Other Levels Of Organization
1
1. Definition and Basic Concepts of Tissues
- A tissue is a group of cells with common origin, similar structure, and the same function
- Cells in a tissue are derived from the same embryonic layer, ensuring structural similarity
- The study of tissues is called histology
2
2. Plant Tissues - Classification
- Plant tissues are divided into two main categories: Meristematic and Permanent
- Meristematic tissues contain dividing, undifferentiated cells
- Permanent tissues have stopped dividing and are differentiated
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3. Meristematic Tissues
- Meristematic tissues are composed of immature, undifferentiated cells
- Cells are living, thin-walled with abundant cytoplasm and prominent nuclei
- Vacuoles are small or absent in meristematic cells
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4. Simple Permanent Plant Tissues
- Three main types of simple tissues: Parenchyma, Collenchyma, Sclerenchyma
- Parenchyma cells are living, thin-walled, with prominent intercellular spaces
- Parenchyma functions in storage, photosynthesis, and giving rigidity through turgor pressure
Key Concepts
A tissue is a groupMeristematic tissues consist of immatureSimple permanent tissues are composedComplex tissues contain multiple cell typesThis theory explains vegetative shoot apex
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What are the important topics in Tissues And Other Levels Of Organization for NIOS Class 12 Biology?
Key topics in Tissues And Other Levels Of Organization include Definition and Basic Concepts of Tissues, Plant Tissues - Classification, Meristematic Tissues, Simple Permanent Plant Tissues. Study these first, then practise questions on each for the NIOS Class 12 board exam.
How should I revise Tissues And Other Levels Of Organization for the NIOS Class 12 board exam?
Learn the core ideas first, then work through the 45 practice questions on Tissues And Other Levels Of Organization. Revise definitions regularly and use flashcards for quick recall before the exam.
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Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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