Which statement is true?
a) simple sugars are made of polysaccharides.
b) glycerol is made of fatty acids.
c) rna molecules are made of nucleotides.
d) amino acids are made of proteins.

RNA molecules are made of nucleotides. (Ans. C)

Explanation:

RNA, which is also known as ribonucleic acid is found in cytoplasm of the cell, and synthesized in the nucleus. It is shorter, and a single stranded molecule. It is composed of one or more nucleotides which are linked together by phosphodiester bonds.

In RNA, the ribonucleotide contains pentose sugar ribose, four nitrogenous bases (A,U,C,G), and a phosphate group. RNA plays many types of role in cells, but mainly involved in the translation process, and it's regulation which is known as protein synthesis.

Amino acids are made of proteins

Explanation:

Amino acids are made of proteins which are joined together in chains, they are divided into 20 types . Virtually all amino acids makes the 3D shape