
Energy and Metabolic Reactions
7th Grade · Science · 45 min
Lesson Preview
Learning Objective
I can describe how metabolic reactions help organisms use energy.
- 1
Metabolism is the term that describes how enzymes transform molecules through multi-step pathways to provide energy for the body.
- 2
Catabolic pathways break down larger molecules into smaller ones, releasing energy, while anabolic pathways assemble small molecules into larger ones, which requires energy.
- 3
ATP, or adenosine triphosphate, is a nucleotide with three phosphate groups that stores potential energy for cells to use in reactions.


