NUTR 1010 Study Guide - Final Guide: Bottled Water, Bloating, Menopause
6 Dec 2013
School
Department
Course
Professor
Document Summary
Forms: triglycerides (95% dietary and body fat, phospholipids (5%, sterols (in part) Short: <6 carbon atoms: medium: 6-12 c. Long: >14 c: most of food we eat is long chain (most abundant in diet) Polyunsaturated fatty acid: 2+ dbl bond, liquid @ room temp (canola, corn = safflower oils) Saturated = straight + rigid molecule: unsaturated = becomes bendy or kinky (bend called a cis) Trans formation look straight like saturated: trans fats are man-made thru hydrogenation. Soluble in water: help maintain cell membranes. Ring-like structure: cholesterol most common, make bile in liver, makes hormones, makes some type of vit d. Absorption of fat: occurs in small intestine, with help of micelles. Spherical, made of bile and phospholipids (water soluble). Transport free fatty acids and monoglycerides to mucosal cells (intestinal wall: once inside mucosal cell: Long-chain fatty acids and monoglycerides are repackaged into triglycerides: triglycerides packaged with protein and phospholipids into chylomicrons (still in intestinal cell)
