All living things can:
Take in energy
Use stored energy
Laws of Thermodynamics
How do cells...
take in energy?
use stored energy?
ATP = adenosine triphosphate
= form of energy used by cells to do work
= shuttles energy from sugar to site where it is used
ATP is formed by oxidation/reduction reactions
high-energy electrons are passed along an electron transport chain
they are stepped "downhill" in an energy sense