A scientist is studying a chemical reaction that occurs in the human body. She reproduces the reaction in her lab, but the reaction does not occur until she raises the temperature in her experiment to 10°C higher than the human body temperature. What is most likely different about the reaction in the human body? A.
The chemicals are more plentiful inside the human body.

B.
Semipermeable cell membranes regulate the reaction conditions.

C.
The blood provides the extra heat inside the human body.

D.
Enzymes in the human body lower the activation energy required.