Biology Cell Organisation
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Biology Cell Organisation

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@AutonomousShakuhachi

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Questions and Answers

What is the primary difference between unicellular and multicellular organisms?

  • Their ability to perform different functions
  • Their habitat and environment
  • The number of cells they possess (correct)
  • Their complexity in body structure

    • What is the term used to describe a group of similar cells that perform a specific function?

  • Cell
  • Tissue (correct)
  • Organ System
  • Organ

    • What is the term used to describe two or more organs that perform a common function?

  • Organ
  • Organ System (correct)
  • Tissue
  • Body

    • How many basic types of tissues are found in complex animals?

    <p>Four</p> Signup and view all the answers

    What is the benefit of organisation in multicellular organisms?

    <p>More efficient and better coordinated activities</p> Signup and view all the answers

    What is the level of organisation that exhibits division of labour in the body?

    <p>Organs and Organ Systems</p> Signup and view all the answers

    What is the result of the organisation of cells, tissues, organs and organ systems in the body?

    <p>Better coordination of body functions</p> Signup and view all the answers

    What is the characteristic of the organisation of cells in multicellular organisms?

    <p>Different groups of cells perform specific functions</p> Signup and view all the answers

    What is the term used to describe the body of a simple organism like Hydra?

    <p>Made of different types of cells</p> Signup and view all the answers

    What is the approximate number of cells in the human body?

    <p>Billions</p> Signup and view all the answers

    Study Notes

    Cellular Organization

    • In unicellular organisms, a single cell performs all functions like digestion, respiration, and reproduction.
    • In multicellular animals, different groups of cells perform specific functions in a well-organized manner.

    Cells and Tissues

    • The body of a simple organism like Hydra is composed of different types of cells, with thousands of cells in each type.
    • The human body is composed of billions of cells that perform various functions.
    • A group of similar cells, along with intercellular substances, performs a specific function, and this organization is called a tissue.

    Tissue Types and Organization

    • There are only four basic types of tissues in complex animals.
    • These tissues are organized in specific proportions and patterns to form organs like stomach, lung, heart, and kidney.

    Organs and Organ Systems

    • When two or more organs perform a common function through physical and/or chemical interaction, they form an organ system, such as the digestive system, respiratory system, etc.
    • Organs and organ systems exhibit division of labor and contribute to the survival of the body as a whole.
    • The association of organs forms organ systems, which is essential for more efficient and better-coordinated activities of millions of cells constituting an organism.

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    Description

    Test your knowledge of cellular organisation in living organisms, from unicellular to multicellular structures. Explore the different levels of organisation, tissues, and organs that enable complex functions.

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