Dan is a body builder. He decides that he is going to change his diet in an effort to increase his muscle mass. Dan tells you that he plans to eat vegetables and proteins but no fats or carbohydrates, because cells do not naturally contain these molecules and do not need them. You advise Dan that his new diet is not a good choice, and that he would do better to follow a well balanced diet that incorporates healthy amounts of proteins, fats AND carbohydrates.
-Dan tells you that he believes that proteins are the primary source of energy for his cells because proteins are easily digested. You tell him that this is

Question

Quizplus · Accepted Answer

While proteins can be broken down into amino acids which can then be used for energy, carbohydrates are the primary source of energy for cells because they are easily broken down into glucose which can be used for fuel. Fats can also be used as an energy source, especially during times of prolonged exercise or fasting.

Dan Is a Body Builder