Lesson T1.1.6

T1.1.6 From cells to organisms Quiz: KS3 Biology, Unit 1

20 questions

Written by Revision Ninja · Last reviewed 11 October 2026

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Lesson T1.1.6, From cells to organisms: 20 multiple choice questions for the KS3 Biology (National Curriculum), Unit 1: Structure and function of living organisms, written with Revision Ninja.

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The 20 questions

  1. What is the correct order of the levels of organisation in a multicellular organism?

    • Organs, cells, tissues, systems, organism
    • Tissues, cells, systems, organs, organism
    • Cells, tissues, organs, systems, organism
    • Systems, organs, cells, tissues, organism

  2. What is a tissue?

    • A group of similar cells working together for one function
    • An organ made of several systems that all work together in the body
    • A single cell with specialised parts that carry out many different jobs
    • A group of organs that work together as one system to carry out a job

  3. What is an organ?

    • A single specialised cell that carries out one particular function
    • A group of organisms living together in one place as a community
    • A structure made of different tissues working together
    • A group of cells that are all identical and do the same job

  4. Which of these is an example of a tissue?

    • Muscle tissue
    • The circulatory system
    • The heart
    • A single bacterium

  5. Which of these is an example of an organ?

    • A nerve cell
    • The stomach
    • Xylem tissue
    • Blood plasma

  6. Which of these is an example of an organ system?

    • A single liver cell, which makes bile and stores sugar for energy
    • Epithelial tissue, which covers the surfaces of organs and cavities
    • The stomach, which is a single organ that digests food in the body
    • The digestive system

  7. The heart, blood vessels and blood form which system?

    • The reproductive system
    • The respiratory system
    • The skeletal system
    • The circulatory system

  8. In a plant, which of these is an organ?

    • A leaf
    • Palisade cells
    • A root hair cell
    • Xylem vessels

  9. Which plant tissue transports water and mineral ions from the roots to the rest of the plant?

    • Xylem
    • Epidermis
    • Palisade mesophyll
    • Phloem

  10. Why are cells in a multicellular organism often specialised?

    • So each cell type can carry out a particular job well
    • So cells do not need energy because they are supplied by other cells
    • So cells can grow to any size they need to carry out their work
    • So every cell can do every job at the same time without any problem

  11. A stomach is an organ made of several tissues. Which of these tissues is part of the stomach wall?

    • Phloem tissue
    • Muscle tissue
    • Xylem tissue
    • Palisade tissue

  12. Which level of organisation is a group of organs working together?

    • An organism
    • A system
    • A tissue
    • A cell

  13. The lungs and the trachea work together in which system?

    • The digestive system that breaks down food into small molecules
    • The gas exchange system
    • The skeletal system that supports and protects the body
    • The nervous system that carries messages around the whole body

  14. Which level of organisation describes a single human being?

    • Organism
    • System, which is a group of organs working together
    • Tissue, which is a group of similar cells working together
    • Organ, which is a structure made of several tissues

  15. A student says that a leaf is a tissue. What is the correct correction?

    • A leaf is a cell, the smallest unit of all living things in the plant
    • A leaf is an organism, a complete living thing made of many organ systems
    • A leaf is a system made of organs that carry out a whole body job
    • A leaf is an organ, made of several tissues working together

  16. What is the main function of the digestive system as a whole?

    • To pump blood around the body through the heart and blood vessels
    • To produce gametes so that the organism can reproduce successfully
    • To support the body and protect the organs from damage and injury
    • To break down food and absorb nutrients

  17. Which system includes bones and joints?

    • The reproductive system
    • The digestive system
    • The skeletal system
    • The circulatory system

  18. Why is it useful for complex organisms to have organ systems?

    • Systems reduce the total number of cells needed to build the organism
    • Organs stop working properly when they have to share jobs with others
    • Systems make all the cells in the organism identical to one another
    • Different organs can share the work of keeping the organism alive

  19. Which cell is specialised for absorbing water in plant roots?

    • A guard cell, which opens and closes the stomata in the leaf
    • A root hair cell
    • A palisade cell, which is packed with chloroplasts for photosynthesis
    • A sperm cell, which carries genetic material from the male body

  20. Which of these is an example of a multicellular organism?

    • An amoeba
    • A bacterium
    • A human
    • A yeast cell

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