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Cell Structure and Function — Syllabus

Telangana Open School (TOSS) · Class 12 · Biology

What Cell Structure and Function covers in Telangana Open School (TOSS) Class 12 Biology: 4 topics, for the 2026-27 session.

47 questions35 flashcards5 concepts

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4 Topics · Telangana Open School (TOSS) Class 12 Biology · 2026-27

Topics in Cell Structure and Function

1

The Cell Theory

  • All living organisms are made up of cells.
  • The cell is the basic structural and functional unit of life.
  • All cells arise from pre-existing cells (Omnis cellula-e-cellula).
2

Types of Cells

  • There are two main types of cells: Prokaryotic and Eukaryotic.
  • Prokaryotes lack a well-defined nucleus and membrane-bound organelles (e.g., bacteria).
  • Eukaryotes have a true nucleus and membrane-bound organelles (e.g., plants, animals, fungi).
3

Structure and Function of Cell Components

  • Plasma membrane is selectively permeable and made of a phospholipid bilayer with embedded proteins (Fluid Mosaic Model).
  • Cell wall in plants is made of cellulose and provides rigidity and shape.
  • Cytoplasm contains organelles like mitochondria, ER, Golgi, lysosomes, etc.
4

Cell Organelles and Their Functions

  • Endoplasmic Reticulum (ER): Network of membranes; rough ER has ribosomes for protein synthesis, smooth ER for lipid synthesis.
  • Golgi Apparatus: Modifies, sorts, and packages proteins and lipids for secretion or delivery.
  • Lysosomes: Contain digestive enzymes; break down waste and pathogens.

Key Concepts

Central concept: Cell

Cell TheoryTypes of OrganismsProkaryotic and Eukaryotic CellsPlant and Animal CellsCell MembraneCell WallCytoplasm and OrganellesNucleus

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Frequently Asked Questions

What are the important topics in Cell Structure and Function for Telangana Open School (TOSS) Class 12 Biology?
Key topics in Cell Structure and Function include The Cell Theory, Types of Cells, Structure and Function of Cell Components, Cell Organelles and Their Functions. Study these first, then practise questions on each for the Telangana Open School (TOSS) Class 12 board exam.
How should I revise Cell Structure and Function for the Telangana Open School (TOSS) Class 12 board exam?
Learn the core ideas first, then work through the 47 practice questions on Cell Structure and Function. Revise definitions regularly and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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All Telangana Open School (TOSS) Class 12 Biology Syllabus

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