Learning Paths
Each learning path is one chapter: a guided route through a topic, one small course at a time. Pick a class to see its chapters in order.
Chapter 10
Respiration in Plants
A potato forgotten in a dark cupboard still sprouts. It has no light to make food, so where does the energy come from? Every living cell burns its food in small steps and keeps the energy in a molecule called ATP. In this chapter you follow one glucose molecule through glycolysis, the Krebs cycle and the electron transport system, count the ATP it earns, see how the same pathway also builds new molecules, and use the respiratory quotient to tell what a seed is burning. Python keeps the books of ATP.
3 courses
