Notes: Unit 1--Lipids Name Date Hour. (1) What is a lipid? Type of Biomolecule Means “fat”

Notes: Unit 1--Lipids

Name

Date

Hour

(1) What is a lipid?

• Type of Biomolecule

• Means “fat”

(2) Elements

• Carbon (C)

• Hydrogen (H)

• Oxygen (O)

(3) Monomer

• Monomer: Basic unit or Smallest unit of a polymer (larger molecule).

• Lipid Monomer:– Fatty Acid & Glycerol

(4) Polymer

• Polymer: A larger structure (molecule) made of many smaller units (monomers).

• Lipid Polymer:– Neutral Fat– Steroid & Hormone– Phospholipid

(5) Types of Lipids• Neutral Fat:

Fats & OilsLong Term Energy & Insulation

• Steroids:Chemical MessagesGrowth, Reproduction

• Phospholipids:Cell Membrane StructureHydrophobic & HydrophilicPolar Head, Nonpolar Tails

(6) Function

• Major:– Long Term Energy Storage– Membrane Structure

• Minor:– Chemical Message (Steroids & Hormones)

(7) Examples

• Saturated & Unsaturated Fats

• Oils & Grease

• Foods with Fat & Oil:– Nuts– Meats– Dairy

(8) Saturated, Unsaturated & Trans Fat

• Saturated Fat:Carbon Single Bonds Lots of Hydrogen Around CarbonsSolidify Quickly Arterial Build Up

• Unsaturated Fat:Carbon Double Bonds Less HydrogenCell Membranes & Energy

• Trans Fat:Carbon Double Bonds Different than other Unsaturated FatsArterial Build Up faster than normal Saturated Fats