ICSE Class 11 Biology | 3. Cell: Structure and Function by Pavan | Learn Smarter
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3. Cell: Structure and Function

The chapter covers the essential role of cells as the basic unit of life, detailing the two main types of cells: prokaryotic and eukaryotic. It provides an overview of various cell organelles and their specific functions, emphasizing the differences between plant and animal cells. Understanding these concepts is vital for grasping the biological processes that support life.

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Sections

  • 3

    Cell: Structure And Function

    This section discusses the fundamental unit of life, the cell, detailing its types, components, and organelles.

    Learning Practice

  • 3.1

    Introduction

    Cells are the fundamental units of life, essential for biological processes.

    Learning Practice

  • 3.2

    Cell Theory

    Cell Theory posits that all living organisms are made up of cells, and all cells arise from pre-existing cells.

    Learning Practice

  • 3.3

    Types Of Cells

    This section introduces the two primary types of cells: prokaryotic and eukaryotic, detailing their structure and examples.

    Learning Practice

  • 3.4

    Cell Structure

    Cell structure refers to the various components of a cell, including the cell membrane, cytoplasm, and nucleus.

    Learning Practice

  • 3.4.1

    Cell Membrane

    The cell membrane is a semi-permeable barrier that surrounds the cell, regulating the movement of substances into and out of the cell.

    Learning Practice

  • 3.4.2

    Cytoplasm

    Cytoplasm is a jelly-like substance within cells that supports organelles and facilitates biochemical processes.

    Learning Practice

  • 3.4.3

    Nucleus

    The nucleus is the control center of the cell, housing genetic material and regulating cell activities.

    Learning Practice

  • 3.5

    Cell Organelles And Their Functions

    This section covers the main organelles found within cells and their specific functions, highlighting their roles in maintaining cellular health and activity.

    Learning Practice

  • 3.5.1

    Mitochondria

    Mitochondria are the essential organelles in cells, responsible for producing energy through respiration.

    Learning Practice

  • 3.5.2

    Endoplasmic Reticulum (Er)

    The Endoplasmic Reticulum (ER) is a network of membranes crucial for the synthesis of proteins and lipids within the cell.

    Learning Practice

  • 3.5.3

    Golgi Apparatus

    The Golgi apparatus modulates, packages, and transports proteins and lipids within the cell.

    Learning Practice

  • 3.5.4

    Lysosomes

    Lysosomes are cellular organelles that contain digestive enzymes necessary for breaking down waste materials and cellular debris.

    Learning Practice

  • 3.5.5

    Ribosomes

    Ribosomes are crucial cellular structures responsible for protein synthesis.

    Learning Practice

  • 3.5.6

    Chloroplasts (In Plant Cells)

    Chloroplasts are specialized organelles in plant cells that contain chlorophyll and are essential for photosynthesis.

    Learning Practice

  • 3.5.7

    Vacuoles

    Vacuoles are storage sacs within cells that contain nutrients and waste products while also helping to maintain turgor pressure in plant cells.

    Learning Practice

  • 3.6

    Cell Wall (In Plant Cells)

    The cell wall is a rigid outer layer that provides structural support and protection to plant cells.

    Learning Practice

  • 3.7

    Differences Between Plant And Animal Cells

    This section outlines the key differences between plant and animal cells, highlighting structural variations.

    Learning Practice

References

b11-3.pdf

Class Notes

Memorization

What we have learnt

  • All living organisms consis...
  • Cells can be categorized in...
  • Different organelles within...

Final Test

Revision Tests