Question

1. which group of macromolecules are considered essential for life? only proteins and lipids. carbohydrates, proteins, lipids, and nucleic acids. only nucleic acids and carbohydrates. only lipids.

Explanation:

Carbohydrates provide energy, proteins are involved in many cellular functions, lipids are part of cell - membranes and energy storage, and nucleic acids carry genetic information. All are essential for life.

Answer:

Carbohydrates, proteins, lipids, and nucleic acids.