19. Molecular chaperones are a class of proteins that facilitate: (A) the proper folding of newly synthesized proteins (B) unfolding of newly synthesized proteins (C) degradation of newly synthesized proteins (D) targeting of newly synthesized proteins

Answer: (A) the proper folding of newly synthesized proteins
Explanation: Molecular chaperones assist in the correct folding of newly synthesized proteins, preventing misfolding and aggregation. They do not facilitate unfolding, degradation, or targeting of proteins.