Final answer:
Carbohydrates, proteins, and lipids are essential for our body's structural framework. Carbohydrates are the main source of energy and also contain fiber. Proteins are formed by amino acids joining together.
Step-by-step explanation:
Carbohydrates, proteins, and lipids provide the basic framework for our muscles, bones, blood, hair, and fingernails. Carbohydrates are our bodies main source of energy and contain 4 calories per gram. Carbohydrates also contain fiber which is nondigestible. Proteins are created by amino acids joining together.
Proteins provide the basic framework for our muscles, bones, blood, hair, and fingernails. Carbohydrates are our body's main source of energy and contain 4 calories per gram. Carbohydrates also contain fiber which is nondigestible. Proteins are created by amino acids joining together.