Final answer:
Carbohydrates store energy and provide structure, lipids store energy and insulate, proteins have diverse functions, and nucleic acids store and carry genetic information in cells.
Step-by-step explanation:
Carbohydrates store energy and provide structure to cells. An example of a carbohydrate is glucose, which is the primary source of energy for the body. Lipids include fats and oils, which store energy and provide insulation for plants and animals. Proteins have diverse functions, including enzymes that speed up chemical reactions and structural proteins that help cells keep their shape. An example of a protein is hemoglobin, which allows blood to carry oxygen. Nucleic acids, such as DNA and RNA, store and carry genetic information in cells.