Lipids (fats and oils) The formation of a triglyceride one molecule + three moleculesone molecule +water of glycerolof fatty acidsof a triglyceride H H.

Slides:

Advertisements

Similar presentations

 Lipids: a large and varied group of organic compounds.

Advertisements

LIPIDS They are made up of C, H and O atoms.

Lipids Lipids can be classified as:

Biochemistry Part V Lipids. Lipids A class of organic molecules that are insoluble in water A class of organic molecules that are insoluble in water There.

LIPIDS To be able to Identify the elements which make up lipids

© SSER Ltd.. Lipids are a diverse collection of substances that have a range of different functions in living systems Lipids are compounds that serve.

Insoluble Biological Molecules

Fats and Lipids.

Lipids Monomers – fatty acids & glycerol Function- repel water, insulate, store the greatest amount of energy compared to other macromolecules Found in.

JACKIE MALDONADO Lipids. Also called triglycerides Contain oxygen, hydrogen and carbon. Made of three fatty acids and one glycerol by condensation reaction.

AP Biology Lipids: Fats & Oils AP Biology Lipids  Lipids are composed of Carbon, Hydrogen, and small amts of Oxygen  long hydrocarbon chains (H-C)

Lipids long term energy storage concentrated energy.

FAT I mean “Lipids.” You know how I feel about fatty foods and I just got a bit excited Long term energy storage concentrated energy Structural (Cell.

Lipids: Fats & Oils.

Lipids IB Biology Topic 3.

Structure and function of cell components (i)Carbohydrates (ii)Lipids (iii)Proteins (iv)Nucleic Acids (v)Membranes (vi)Cytoskeleton.

Fats and Oils Fats and oils have the same basic structure. They are made in a condensation reaction when 3 fatty acid groups join with 1 molecule of glycerol.

Lipids (Fats) Triglycerides and phospholipids are two groups of lipid.

Mmmm… LIPIDS!. What’s the connection? FATS CAN BE … BOTH GOOD AND BAD!

Lipids: Fats & Oils Lipids long term energy storage concentrated energy.

AP Biology Lipids Oils Fats. AP Biology Lipids: Fats & Oils.

Lipids A lipid is any molecule that DOES NOT mix with water. – They are “water fearing” / nonpolar (hydrophobic) Lipids function in: – Energy (E) storage.

AS Biology Core Principles Lipids. Aims o Elements of lipids o Structure of glycerol & fatty acids o Condensation reactions to form triglycerides o Phospholipids.

Lipids Mini Lecture Radjewski. Lipids PDQ 1 Lipids are hydrocarbons (composed of C and H atoms); they are insoluble in water because of many nonpolar.

Phospholipid A phospholipid is a type of lipid used in the cells of living things.

Introduction to lipids Lipids are a diverse group of compounds that are insoluble in water but soluble in organic solvents such as ethanol. The most common.

LIPIDS Triglycerides, phospholipids and steroids.

State that plasma (cell surface) membranes are partially permeable barriers. Outline the roles of membranes within cells and at the surface of cells. ©

Lipids contain the elements Carbon Hydrogen Oxygen There are two main groups: Triglycerides Phospholipids.

Learning Outcomes: B4 Describe chemical structure of lipids compared to carbohydrates Recognize structural diagrams of: glycerol, saturated and unsaturated.

Lipids. What are lipids? Large non polar organic molecules Elements that make up most lipids: – Carbon – Hydrogen – Oxygen Examples: – Phospholipids,

Lipids and Cell Membrane Structure. Lipids make up MOST of the cell membrane Lipids are not soluble in water Lipids store large amounts of energy The.

Lipids. Lipids  Lipids are fats (solid), oils (liquid), waxes and phospholipids  Lipids contain carbon (C), Oxygen (O), Hydrogen (H) and sometimes other.

Using the word bank below (some terms do not apply!), dissect the molecules shown. You may use circles and arrows to label key features. WORD BANK: PBL:

LIPIDS FAT FOR SHORT.

LIPIDS Varied in structure

Lipids: Fats & Oils.

Lipids The three types of lipids are fats, oils, and waxes.

Chapter 5 The Structure and Function of Macromolecules

BUILD!!! Saturated Fatty Acid Omega-3-cis-monounsaturated Fatty Acid

Lipids: Fats & Oils.

Lipids: Fats & Oils.

Lipids: Fats & Oils.

Lipids: Fats & Oils.

Lipids: Fats & Oils.

Lipids and the Cell Membrane

LIPIDS Diverse group of organics Insoluble in water

AS Biology Core Principles

CH2OH O C H H H C C OH H OH HO C C H OH.

Lipids: Fats & Oils.

dehydration synthesis Fats Structure: fatty acid = long HC “tail” with carboxyl (COOH) group “head” enzyme Look at structure… What makes them hydrophobic?

The formation of a triglyceride

Triglycerides Energy storage (fat)

Fats, oils, and other water-insoluble compounds are called lipids.

Lipids: Fats & Oils.

BUILD!!! Saturated Fatty Acid Omega-3-cis-monounsaturated Fatty Acid

What do you use fats for? All around your body?

 Lipids: a large and varied group of organic compounds.

Lipids Made up of C, H and O Can exist as fats, oils and waxes

Carbs ENERGY Structural support of plants.

The plasma (Cell) membrane

Commonly called “Fats”

Catalyst Take out your homework so that we may go over it.

Presentation transcript:

Lipids (fats and oils) The formation of a triglyceride one molecule + three moleculesone molecule +water of glycerolof fatty acidsof a triglyceride H H H C OH + HOOC.R 1 H C OOC.R 1 H C OH + HOOC.R 2 H C OOCR 2 + 3H 2 O H C OH + HOOC.R 3 H C OOC.R 3 H H

Ester link The reactions between the fatty acids and glycerol are examples of condensation reactions i.e. water is eliminated. The glyceride molecule is always the same but the fatty acids vary. The condensation reaction occurs between the carboxyl group (COOH) of the fatty acid and the hydroxyl group (OH) of the glycerol. H O H O H C OH HO C R H C O C R ester link

Phospholipids Phospholipids are important componants of the cell membrane. One of the glycerol hydroxyl groups is esterified by phoshoric acid (H 3 PO 4 ) rather than by a fatty acid ester links ( O ) H H H C OH + HOOC.R 1 H C OOC.R 1 H C OH + HOOC.R 2 H C OOCR 2 + 3H 2 O H C OH + HO P OH H C OP O(H) H OH O H OH O

Simplified structure fatty acids - non-polar glycerol hydrophobic (repels water) phosphate group - polar hydrophilic (attracts water)