Question

lipids are a diverse group of biological macromolecules that include triglycerides, phospholipids, waxes, and steroids. the structure of each type of lipid impacts its function. determine whether each statement is true or false.

	true	false
the structure of a lipid impacts its properties.	〇	〇
lipids are mostly hydrophobic.	〇	〇

Explanation:

Statement 1: "A gram of protein supplies more energy than a gram of fat."

Fats (lipids) provide more energy per gram (about 9 kcal/g) than proteins (about 4 kcal/g). So this statement is false.

In biology, the structure - function relationship holds. The different structures of lipids (e.g., triglycerides vs phospholipids) lead to different properties like solubility, energy storage capacity, etc. So this statement is true.

Lipids are composed mainly of non - polar hydrocarbon chains, which are hydrophobic (water - fearing). Even phospholipids, which have a hydrophilic head, have a hydrophobic tail region, and overall lipids are mostly hydrophobic. So this statement is true.

Answer:

False

Statement 2: "The structure of a lipid impacts its properties."