Answer:option A
Multiple reactants are used to form one product.
Active sites in enzymes are where substrates bind. Once they bind, a catalytic reaction occurs as a complex between substrate and enzyme is formed. Enzymes are termed as biocatalysts or simply catalysts since they speed up the catalytic reaction. After the reaction, they simply revert back to their original form, after having adjusted to fit with substrate.
Answer: the wave is reflected
explaination: in which, reflected stately happens when a wave strikes an object
