1. If a lipid is a liquid at room temperature, it is a good assumption that this lipid does/does not contain double bonds. Explain your answer.
It does contain double bonds, as the presence of these bonds typically leads to a lower melting point, resulting in the lipid being in a liquid state at room temperature. This characteristic is common among unsaturated fats, which have one or more double bonds in their fatty acid chains, causing kinks that prevent tight packing and thus maintain a liquid form.