What classification do amino acids and trace elements fall under?

Amino acids and trace elements are classified as micro nutrients. This classification is appropriate because micro nutrients are essential elements that organisms require in smaller amounts for proper functioning, growth, and development.

Amino acids, which are the building blocks of proteins, play a critical role in various physiological processes, including cell structure, enzymatic activities, and signaling pathways. Trace elements, such as zinc, copper, and selenium, are vital for numerous biochemical reactions and overall health despite being needed in minute quantities compared to macro nutrients.

In contrast, macro nutrients, as defined, include proteins, carbohydrates, and fats, which are required in larger quantities and provide energy or structural components. Secondary nutrients usually refer to elements like calcium, magnesium, and sulfur, which are also essential but fall into a different category from micro nutrients. Lastly, complex carbohydrates are primarily a source of energy and do not relate to the classification of amino acids or trace elements. Therefore, identifying amino acids and trace elements as micro nutrients captures their critical importance to biological systems accurately.