Answer B did this a few ago
Answer:
Diffusion
Explanation:
Oxygen molecules can travel through the phospholipid bilayer using diffusion. Diffusion is when molecules travel from a higher concentration to a lower concentration.
It acts as biological catalysts, which can speed up the chemical reactions, it can fit substrates into its active site and produce a product, but the enzyme shape is not changed and it can be reused. just unless the enzyme meets high temperature or extreme pH values, which will denature them
