By lowering the activation energy of the reaction
A. Stretching your legs before a run. You're creating tension by applying force to pull your tendons and ligaments.
Enzymes are biological molecules (typically proteins) that significantly speed up the rate of virtually all of the chemical reactions that take place within cells. They are vital for life and serve a wide range of important functions in the body, such as aiding in digestion and metabolism.
Answer:
1. DNA and RNA I'm pretty sure