Which type of macromolecule is responsible for long-term energy

Subject : Biology

Question:

Which type of macromolecule is responsible for long-term energy storage?

A. Carbohydrates

B. Proteins

C. Lipids

D. Nucleic Acids

Expert Verified Solution:

The correct answer is lipids. Lipids are the macromolecules responsible for long-term energy storage in organisms. Unlike carbohydrates, which provide quick energy, lipids store energy in the form of fats and oils, which can be utilized by the body over extended periods when needed. Lipids are more efficient at storing energy because they contain more energy per gram than carbohydrates or proteins. This makes them an essential energy reserve in both animals and plants.

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