1 Phospholipids consist of a glycerol molecule, two fatty acids, and a phosphate group that is modified by an alcohol. 2  The phosphate group is the negatively-charged polar head, which is hydrophilic.  The fatty acid chains are the uncharged, nonpolar tails, which are hydrophobic.
There are 150 calories in a 1 cookie serving of McDonald's Oatmeal Raisin Cookie. Calorie breakdown: 36% fat, 59% carbs, 5% protein.
Fat. One serving of a McDonaldâs Egg Biscuit has 110 fat calories that contribute to the total calorie value. Each sandwich has 12 g total fat and 260 mg cholesterol. One sandwich contains 19 percent of the USDA recommended daily amount of fat for a 2,000-calorie diet. Saturated fat contributes 5 g to the total fat content.