Energy for Life
Map
Arrows point from what you learn first to what it opens. Point at a concept to light up its chain and where it comes back deeper. Right-click a concept (or press and hold it) for its lessons and stories.
- Proven to depth123
- Open
- Locked
- Comes back deeper
Learning path
In the order the concepts build on each other.
- Cellular respirationLockedHow every living cell releases the energy stored in food: it combines glucose with oxygen, giving off carbon dioxide and water. It isn't the same thing as breathing.Opens after: Parts of a cell
- EnzymesReadyMolecules, almost always proteins, that speed up the chemical reactions in living things without being used up. Each one has a pocket that fits only the right molecule, so heat that changes its shape stops it working.
- PhotosynthesisLockedHow plants, algae and some bacteria make their own food: they use the energy of light to turn carbon dioxide and water into glucose, a sugar, and give off oxygen.Opens after: Plant and animal cells
- What plants needLockedTo grow, plants need light, water, air and nutrients from the soil - and space to grow.Opens after: Life processes
Connections to other domains
- What plants need leads to HabitatsEcology
- What plants need needs Life processesLife and Its Variety
- Photosynthesis needs Plant and animal cellsThe Cell
- Cellular respiration needs Parts of a cellThe Cell
- Enzymes leads to DigestionThe Human Body