Final answer:
Enzymes are the catalysts that help organisms carry out needed chemical reactions. They increase the rate of reactions by lowering the activation energy. Enzymes are critical for regulating chemical reactions in living organisms.
Step-by-step explanation:
The catalysts that help an organism carry out needed chemical reactions are called enzymes. Enzymes are biological catalysts that increase the rate of chemical reactions by lowering the activation energy required for the reaction to occur.
They do this by binding to reactant molecules and facilitating the bond-breaking and bond-forming processes. Enzymes are essential for regulating chemical reactions in living organisms. Enzymes are the catalysts that help organisms carry out needed chemical reactions. They increase the rate of reactions by lowering the activation energy. Enzymes are critical for regulating chemical reactions in living organisms.