A weather balloon is inflated to a volume of 27.1 L at a pressure of 730 mmHg and a temperature of 33 degrees Celsius. The balloon rises in the atmosphere to an altitude where the pressure is 385 mmHg and the temperature is -16 degrees Celsius.

Choose an equation that represents an enzyme-catalyzed reaction. (a) enzyme + substrate → enzyme-substrate complex (b) enzyme + substrate ←−→ enzyme + products (c) enzyme + substrate ←−→ enzyme-substrate complex → enzyme + products (d) enzyme + substrate ←−→ enzyme-substrate complex → enzyme-substrate complex + products