What is saturated fat best described as?

• A. Fat in which all three fatty acid chains contain the maximum possible number of hydrogen atoms
• B. Fat with double bonds
• C. Fat that comes only from plants
• D. Fat that is always liquid at room temperature

Answer: (A)

Saturated fats are defined by the structure of their fatty acid chains: all carbon atoms are linked by single bonds and each carbon carries as many hydrogens as possible. This fullness of hydrogen makes the chains straight, so triglycerides can pack tightly and are typically solid at room temperature. That’s why saturated fats are often found as solid fats like butter or animal fats. The other descriptions point to unsaturated fats (which have double bonds), or to fats from plants or fats that are usually liquid at room temperature, which doesn’t describe saturated fats. So the best description is that it’s fat in which all three fatty acid chains contain the maximum possible hydrogen atoms.