成人快手

  • Living organisms

    • Animal and plant cells

      Find out about the cell components that are found in both animal and plant cells.

    • Specialised animal cells

      Discover the different types of cells found in animals and what their role is. Learn about nerve cells, ciliated cells, muscle cells and more.

    • Specialised plant cells

      Discover the different types of cells found in plants, and what each one does. Learn about xylem cells, phloem cells, root hair cells and more.

    • The four components of the blood

      There are four parts of the blood: red blood cells, white blood cells, plasma and platelets.

    • The skeletal system

      Learn about the skeleton, a system of bones and joints that has many important jobs, such as protecting organs and helping the body to move.

    • Skeletal muscles

      Learn about the muscles that work together in pairs to move the bones and body. Discover which muscles, bones and joints are involved in kicking a ball or raising an arm.

    • Biomechanics

      Learn how the skeleton moves at its joints with help from muscles, including examples of hinge, pivot, and ball and socket joints.

    • Adult and embryonic stem cells

      There are two types of stem cells in humans: Embryonic stem cells and adult stem cells. Find out about the differences between them.

    • How plants and animals are organised

      Cells in animals and plants are arranged into tissues, organs and organ systems.

    • Leaf structure

      Learn about the structure and function of leaves.

    • Unicellular organisms

      Find out about unicellular organisms - a living thing that is made of just one cell.

    • Cellulose

      An explanation of what cellulose is and how it is used.

    • The role of diffusion in and within cells

      Diffusion is the movement of particles from high to low areas of concentration. Learn how cells use it to transfer substances.

    • How to make a model animal and plant cell

      Animal and plant cells can be visualised using a model. Find out how to make them.

    • How to observe cells under a microscope

      Discover how to observe cells using a microscope.

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