Complete the following table to help you review the structures and functions of the four classes of organic molecules.

Organic molecules are compounds primarily made of carbon atoms, often combined with hydrogen, oxygen, nitrogen, and other elements. They are essential for life and are categorized into four main classes: carbohydrates, lipids, proteins, and nucleic acids. Each class has distinct structures and functions that contribute to biological processes, such as energy storage, structural support, and genetic information.

Each class of organic molecules serves specific functions vital for living organisms. Carbohydrates provide energy and structural support, lipids are crucial for energy storage and forming cell membranes, proteins perform a wide range of functions including catalyzing reactions and providing structural support, and nucleic acids are responsible for heredity and protein synthesis. Understanding these functions helps in grasping how organisms utilize these molecules.

Examples of organic molecules illustrate their diverse roles in biology. For instance, carbohydrates include sugars like glucose and polysaccharides like starch, while lipids encompass fats and phospholipids. Proteins can be enzymes like lactase or structural proteins like collagen, and nucleic acids include DNA and RNA, which are essential for genetic information storage and transfer. Recognizing these examples aids in understanding the practical applications of each class.