An enzyme known as amylase is found in the saliva of humans. this enzyme to begin the process of digesting starch molecules in the foods we eat. which of these best describes how enzymes like amylase in the process of digestion?
a) amylase acts as a buffer to keep the ph of foods at a consistent level.
b) amylase breaks down the food molecules directly by forming powerful acids.
eliminate
c) amylase is a catalyst that speeds up the chemical process of breaking down food molecules.
d) amylase contains the dna molecules necessary to assemble the proteins needed for digestion.

the relative atomic mass of an element is the mass of one atom of that element, relative to 1/12th of the mass of a  1212c atom. to convert to an absolute mass in kg, it is necessary to multiply by  1.661×10−271.661×10−27.

the relative atomic mass is roughly equal to the number of neutrons, plus the number of protons, in the nucleus of the atom.

for elements with more than one stable isotope (different types of nucleus with different numbers of neutrons but the same number of protons), the quoted mass is usually the average mass, weighted by the relative abundance of the different isotopes.