Which is the correct formula for cellular respiration?
a.6 CO2 + 6 H2O + light energy → C6H12O6 + 6 O2
b.CO2 + H2O → C6H12O6 + O2
c.C6H12O6 + O2 → CO2 + H2O
d.C6H12O6 + 6 O2 → 6 CO2 + 6 H2O + ATP energy