AP BIOLOGY

Detailed explanation-1: -Proteins are least likely to be broken down to make ATP.

Detailed explanation-2: -All of the carbon-based molecules in food store chemical energy in their bonds. Carbohydrates and lipids are the most important energy sources in foods you eat. However, this energy is only usable after these molecules are broken down by a series of chemical reactions.

Detailed explanation-3: -The body needs fats for growth and energy. It also uses them to synthesize hormones and many other substances needed for the body’s activities (such as prostaglandins). Fats are the slowest source of energy but the most energy-efficient form of food.

Detailed explanation-4: -Proteins are least likely to be broken down to make ATP.

Detailed explanation-5: -The organic molecules that store the most energy are called fats or triglycerides. The animal body uses carbohydrates (glycogen) for medium-term energy storage and fats or triglycerides (lipids) for long-term energy storage.