<span>If high amounts of sulfanilamide are in the presence of an enzyme whose substrate is paba, then the enzyme would stop functioning since the sulfanilamide inhibits the action of the enzyme. Hope this answers the question. Have a nice day.</span>
<h2>Answer:</h2>
Option B is correct.
B. start a chemical reaction
<h2>
Explanation:</h2>
Activation energy is the amount of energy that is needed to start a chemical reaction. To start a chemical reaction we have to provide this amount of energy. Different type of catalyst are used to lower the activation energy and catalyze the reaction.
Pyramid like except curved on 2 edges