What change to the following molecule's structure would result in a saturated fat? image represents an unsaturated fatty acid molecule composed of a carboxyl group (-cooh) that is single bonded to a chain carbon, mostly in the form of methylene groups (ch2) single bonded to each other. interrupting the chain of methylene groups is a pair of double bonded carbons with one less hydrogen each. this double bond creates a bend in the molecule. it needs to lose a hydrogen atom and form a double bond between hydrogens. it needs to lose a hydrogen atom and form another double bond between carbons. it needs to gain a hydrogen atom to eliminate the double bond between the carbon and oxygen. it needs to gain a hydrogen atom to eliminate the double bond between the two carbons.