A student is comparing two triglycerides isolated from different sources.
Triglyceride A: All fatty acid tails are saturated, meaning every carbon–carbon bond in the hydrocarbon chains is a single bond. This triglyceride is obtained from animal fat and is solid at room temperature.
Triglyceride B: Some fatty acid tails are unsaturated, containing one or more carbon–carbon double bonds. This triglyceride is obtained from plant oil and is liquid at room temperature.
Compare the structure of these two triglycerides and explain how the structural differences affect their physical properties and functions.