I don't think DNA is a lipid I just think it helps deal with lipids but is not a part of one I think that acid is a lipid tho but thats why I chose 4 may be wrong tho
This means all living organisms must obtain and use energy to live. Energy is the power to do things. ... A living organism can either make its food or depend on others to make food for them. For example, green plants produce their food from a process called photosynthesis.