Answer:
Similarity between fats and steroids:
Both the fats and steroids share the similar structure. They contains the hydrophobic part and forms the main constituent of the sterols. Both the fats and sterol are involved in the structure of the plasma membrane. Both molecules undergoes the metabolic process.
Differences between fats and steroids:
Fats are used as the storage source of the energy and can be hydrolyzed or broken down in the digestive process. Sterols are the precursors of the hormones and involved in cell signalling and cell - cell communication.