Final answer:
Glucose can be converted to glycogen, proteins can be converted to fat, and fats can be converted to energy.
Step-by-step explanation:
Glucose can be converted to glycogen, which is a storage form of glucose used in the liver and muscles.
Proteins can be converted to fat under certain conditions. When protein intake exceeds the body's needs, the excess amino acids are broken down and converted into fatty acids.
Fats can be converted to energy. During metabolism, fats are broken down into glycerol and fatty acids. Glycerol can be converted into a molecule called glycerol-3-phosphate, which enters glycolysis. Fatty acids can be converted into acetyl-CoA, which enters the citric acid cycle for energy production.