Question

Which of these is how enzymes affect chemical reactions in living organisms?
a. Weakening bonds in reactants
b. Increasing the temperature range
c. Changing the direction of a reaction
d. Breaking down molecules into starch

Answer 1

Explanation:

Enzymes are catalysts for chemical reactions in living things. Enzymes, like other catalysts, lower the activation energy and increase the rate of chemical reac- tions. ... This means that enzymes do not change the direction of a reaction— they just change the amount of time needed for equilibrium to be reached.

Answer 2

Answer:

Enzymes are biological catalysts. Catalysts lower the activation energy for reactions. The lower the activation energy for a reaction, the faster the rate. Thus enzymes speed up reactions by lowering activation energy. So,d. Breaking down molecules into starch is the answer.