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. the structure of a lipid impacts its properties. lipids are mostly hydrophobic. a gram of protein supplies more energy than a gram of fat.

Explanation:

Step1: Recall lipid - structure relationship

The structure of a lipid determines its physical and chemical properties. For example, the length and saturation of fatty - acid chains in triglycerides affect melting point. So, "The structure of a lipid impacts its properties" is true.

Step2: Recall lipid solubility

Lipids are non - polar or mostly non - polar molecules. Non - polar molecules are hydrophobic. So, "Lipids are mostly hydrophobic" is true.

Step3: Recall energy content of macromolecules

A gram of fat supplies about 9 kcal of energy, while a gram of protein supplies about 4 kcal of energy. So, "A gram of protein supplies more energy than a gram of fat" is false.

Answer:

The structure of a lipid impacts its properties: True
Lipids are mostly hydrophobic: True
A gram of protein supplies more energy than a gram of fat: False