Question

which of the following describe a function of enzymes? (select 3 of the 4 choices)
split, or break down molecules
combine, or build up molecules
act as catalysts, or make a reaction happen faster
store water for cells

Explanation:

Enzymes are biological catalysts. They speed up chemical reactions in cells. They can split (break down), combine (build up) molecules. Storing water is not a function of enzymes.

Answer:

Act as catalysts, or make a reaction happen faster, Combine, or build up molecules, Split, or break down molecules