AP BIOLOGY

Detailed explanation-1: -The organic molecules that store the most energy are called fats or triglycerides.

Detailed explanation-2: -The organic compound that stores the most energy is lipids. Lipids are fats and one of their main jobs in the body is to store energy.

Detailed explanation-3: -Adenosine triphosphate (ATP) is the source of energy for use and storage at the cellular level.

Detailed explanation-4: -Lipids are composed of carbon, hydrogen and oxygen atoms, and in some cases contain phosphorus, nitrogen, sulfur and other elements.

Detailed explanation-5: -Explanation: There are four classes of biological molecules: fats, carbohydrates, proteins, and nucleic acids. Of these, fats produce the most energy per gram at a whopping nine calories per gram. Carbohydrates and proteins produce less than half of this, at only four calories per gram.