Correct Response: A. Saturated fats have carbon chains that contain the maximum number of hydrogen atoms and only single bonds between adjacent carbon atoms. This results in carbon chains that are relatively linear and able to pack closely together. These properties tend to make saturated fats solid at room temperature. Although cholesterol (B) is also a lipid, it has a molecular structure that is distinct from saturated and unsaturated fats. Saturated fats are more common in animals, not plants (C). Unsaturated fats, rather than saturated fats, contain more double bonds (D). These double bonds make unsaturated fats more rigid, less able to pack tightly together, and more likely to be liquid at room temperature.
