Both are a source of energy. Both are replicated during meiosis. Both lower the activation energy of reactions. Both dissolve nutrients in the digestive system.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: How are the functions of a carbohydrate and a lipid similar?
Possibilities:
- Both are a source of energy.
- Both are replicated during meiosis.
- Both lower the activation energy of reactions.
- Both dissolve nutrients in the digestive system.

Both are a source of energy.