A. the place where most energy production occurs.

B. a very important hydrogen carrier found in the cell.

C. the process by which a phosphate is added to another molecule.

D. all the chemical reactions that occur in a living cell.

E. the universal source of energy for all living cells.

F. found principally in both ATP and ADP.

G. the process by which energy is produced in complex cells.

H. the process by which energy is produced in primitive cells.

I. the process by which electrons are removed from a molecule.

J. this process requires the use of oxygen.

K. the process by which electrons or hydrogens are added to a molecule.

L. the process that initially breaks down sugars.

M. lactic acid build up is responsible for this.

N. this process produces not only energy, but also water.

O. this process produces four molecules of carbon dioxide.

P. these represent chemical reactions that breakdown molecules.

Q. these reactions are involved with the synthesis of materials.

R. the amount of oxygen needed to dispose of excess lactic acid.

S. this is directly converted into ATP.

T. requires no oxygen.

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