BIO 151 Lecture Notes - Lecture 4: Unsaturated Fat, Trans Fat, Olive Oil
Document Summary
Molecules necessary for life nutrients: provide energy, build structures, preforms function, cell process. Saturated- with hydrogen stores a lot of energy-high energy. Unsaturated- with fewer hydrogen less energy stored in tail. Animal fats tend to have more saturated fats (i. e. butter) Unsaturated (i. e. olive oil) have less fats and gives less energy. Steroids: structure (need these to make. Two regions only has two tails and phosphate on 3rd carbon going in opposite: purpose: Main fat in cell membranes: one side is charged the other is not. Purpose of fats: long term energy: stores 2x more energy than carbohydrates, insulator: helps maintain body heat, nerve cells, cushions and protects: vital organs, nerve cells, cell membranes, absorb vitamins (a, d, e. k) Smallest structure is an amino acid there are 20 of them (same structure but different side group: essential amino acids: (9 of them) Must consume in diet: molecular shape is primary/critical to function: Primary structure- long chain of amino acids-covalently.
