Question

question 15 1 pts which of these is how enzymes affect chemical reactions in living organisms? changing the direction of a reaction increasing the temperature range weakening bonds in reactants or substrates breaking down molecules into starch

Explanation:

Enzymes are biological catalysts. They work by weakening the bonds in reactants or substrates, which lowers the activation - energy required for a chemical reaction to occur in living organisms. They do not change the direction of a reaction (thermodynamics determines reaction direction), do not increase the temperature range, and not all reactions involve breaking down molecules into starch.

Answer:

weakening bonds in reactants or substrates