Vinegar has preservative and antimicrobial properties due to the ability of the active ingredient to cross the membrane as ______________. Once in the cytoplasm, it becomes _______________, thereby, disturbing normal pH.
Choose one:
a. CH3COOH, protonated
b. CH3COO–, protonated
c. CH3COOH, deprotonated
d. CH3COO–, deprotonated