What is a structure within the cytoplasm that performs a specific function within the cell? For example, vacuoles are
an example of one of these structures whose function is to
store substances in the cell.
a) organ
b) borganelle
с) organ system
d) organic compounds

Amino acids contain the elements carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur. of the 20 amino acids found in humans, 11 are called "nonessential" because they can be manufactured by the body when needed. which elements in these 11 amino acids are commonly obtained from the metabolism of sugar molecules?