Cells:The true biological atom
A focused introduction to cells as living, responsive systems.
These five chapters stay with the cell: its structures, boundaries, internal organisation, communication and changing life. Each chapter opens a different doorway into the same small world.
5 chapter roadmapA Cell Is a Living System
Meet the cell as the basic living unit, with specialised structures working together to maintain life.
Guiding question: What must a cell do to stay alive?Open the cell membrane companion to explore moreThe Membrane: A Selective Boundary
Explore the phospholipid bilayer, membrane proteins and the ways cells control exchange with their surroundings.
Guiding question: How does a cell manage what enters and leaves?Open the cell membrane companionInside the Cell: Compartments at Work
Follow organelles and intracellular membrane systems as they make, modify, sort and move materials.
Guiding question: How does a cell organise work in different places?Open the cell organisation companionSignals, Receptors and Cellular Conversation
Trace how cells detect chemical messages, pass signals along and adjust their activity.
Guiding question: How does a cell know when to respond?Open the cell organisation companionGrowth, Renewal and Cell Fate
Consider how cells grow, divide, specialise and undergo programmed cell death as tissues change over time.
Guiding question: How does a cell’s life change, and why?Open the cell organisation companion