Which element is NOT typically part of biomolecules in living organisms?

The correct answer is gold, as it is not typically a component of biomolecules in living organisms. Biomolecules such as carbohydrates, proteins, lipids, and nucleic acids are primarily composed of elements such as carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur and phosphorus. These elements are essential for the structure and functions of biological macromolecules.

Gold, on the other hand, is a metal that does not play a fundamental role in the chemistry of life. While trace amounts of certain metals like iron, zinc, and copper can be vital for specific biological processes, gold is not required for any known biological functions. It does not contribute to the formation of the primary structures of biomolecules and does not participate in metabolic processes in living organisms.

In summary, gold stands out as an element not typically associated with the biomolecular composition necessary for life.