© 2004 Plano ISD, Plano, TX

© 2004 Plano ISD, Plano, TX

All living cells share one common feature: the need for chemical

energy.

All cells except bacteria generate energy in “factories” called

mitochondria.

© 2004 Plano ISD, Plano, TX

releases the energy stored in food made during

photosynthesis

Respiration

6CO2

+6H2O

C6H12O6 +6O2

raw materials

products

+ energy

mitochondria

chemical equation