Question

choose the correct answer. what are substrates? the reactants (ingredients) of enzyme - catalyzed reactions a part of the lungs that helps with oxygen exchange the products of chemical reactions

Explanation:

In biochemistry, substrates are the reactants that bind to the active - site of an enzyme and undergo a chemical reaction catalyzed by the enzyme. They are not related to lung - oxygen exchange or products of chemical reactions.

Answer:

the reactants (ingredients) of enzyme - catalyzed reactions