Answer: b. reaction 3
Explanation: When an enzyme is present in a reaction acts as a catalyst, increasing velocity of reaction and decreasing the activation energy, when not present an enzyme the reaction velocity is very low and implies high activation energy, being unfavorable to the system
The answer to this problem it C because the other answers don’t apply to this question.
Answer:
It's an immortal cell line derived from cervical cancer cells taken from Henrietta Lacks used in scientific cancer research
Gated channel proteins are the name you are looking for