Question

multiple choice question
in living systems, the predominant organic molecules are ______, which are largely responsible for the structure, behavior, and unique qualities of a cell.
nucleic acids
proteins
amino acids
nucleotides
polysaccharides
phospholipids

Explanation:

Proteins are the predominant organic molecules in living systems that play crucial roles in cell - structure, function, and behavior. Nucleic acids store and transmit genetic information, amino acids are building blocks of proteins, nucleotides are components of nucleic acids, polysaccharides are energy - storage or structural molecules, and phospholipids are important for cell membrane structure but are not the predominant molecules for overall cell characteristics.

Answer:

B. proteins