Final answer:
Proteins can be complete or incomplete based on the presence of essential amino acids, with chicken breast as an example of complete protein. Saturated fats are found in foods like butter, while unsaturated fats are in olive oil. Carbohydrates, such as glucose and fructose, are the body's main fuel, present in honey and fruits respectively.
Step-by-step explanation:
Understanding Nutrients in Foods
Proteins are molecules made up of amino acids, which are necessary for the body's structure, function, and regulation of tissues and organs. Complete proteins contain all nine essential amino acids that our bodies cannot synthesize on their own and must obtain from our diet. An example of a food with complete proteins is chicken breast.
Fats provide a concentrated source of energy in our diet. Saturated fats are solid at room temperature and are typically found in animal products like butter. In contrast, unsaturated fats are liquid at room temperature and can be found in foods such as olive oil.
Essential amino acids are those that cannot be made by the body and therefore must come from food. Complete proteins include all essential amino acids, whereas incomplete proteins lack one or more of these.
Carbohydrates serve as the body's main source of fuel. Simple carbohydrates include glucose, a sugar found in foods like honey, and fructose, which is found in fruits.
Vitamins are organic compounds that are vital to our health. Vitamins A, B, and C can be found in a variety of foods, including carrots, citrus fruits, and leafy greens.
Calories represent the amount of energy food provides. Cholesterol, a waxy substance found in your blood, is present in foods like shrimp and egg yolk.