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Introduction To Lipids

Lipids are complex molecules that are not made of repeating monomer units. Triglycerides are the most common type of lipid, consisting of a glycerol molecule bonded to three fatty acid molecules through ester bonds. These ester bonds can be broken through hydrolysis, releasing the fatty acids and glycerol. Triglycerides can be saturated, containing only single bonds between carbon atoms in the fatty acid chains, or unsaturated, containing one or more double bonds. Saturated triglycerides are typically solid at room temperature while unsaturated ones are liquid. Triglycerides serve important roles in the body as an efficient form of energy storage and providing insulation and cushioning to protect internal organs.

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133 views33 pages

Introduction To Lipids

Lipids are complex molecules that are not made of repeating monomer units. Triglycerides are the most common type of lipid, consisting of a glycerol molecule bonded to three fatty acid molecules through ester bonds. These ester bonds can be broken through hydrolysis, releasing the fatty acids and glycerol. Triglycerides can be saturated, containing only single bonds between carbon atoms in the fatty acid chains, or unsaturated, containing one or more double bonds. Saturated triglycerides are typically solid at room temperature while unsaturated ones are liquid. Triglycerides serve important roles in the body as an efficient form of energy storage and providing insulation and cushioning to protect internal organs.

Uploaded by

Mohammed Abdul
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as ODP, PDF, TXT or read online on Scribd
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INTRODUCTION TO LIPIDS

INTRODUCTION TO LIPIDS

They don’t have repeating units of monomers instead is a complex molecule having individual
molecules which can be broken down.
STRUCTURE OF
TRIGLYCERIDES
LIPIDS

Hydrocarbon

Triglyceride
STRUCTURE OF TRIGLYCERIDES

3
Fatty Acid

Glycerol
STRUCTURE OF TRIGLYCERIDES

3
Fatty Acid

Glycerol
ESTER BONDING IN
TRIGLYCERIDES
ESTER BONDING - CONDENSATION

GLYCEROL FATTY ACID

WATER
ESTER BONDING - CONDENSATION

Ester bond

Monoglyceride

WATER
ESTER BONDING - CONDENSATION

Triglycerides have
Condensation
three ester bonds
reaction
ESTER BONDING - HYDROLYSIS
ESTER BONDING - HYDROLYSIS

WATER OH added to Fatty acid

H added to Glycerol

WATER

WATER
ESTER BONDING - HYDROLYSIS

GLYCEROL FATTY ACID


COMPARISON
CONDENSATION AND HYDROLYSIS
SATURATED AND UNSATURATED
TRIGLYCERIDES
SATURATED AND UNSATURATED TRIGLYCERIDES

Liquid Solid
Form Form
SATURATED AND UNSATURATED TRIGLYCERIDES

Hydrocarbon
Acid chain
SATURATED AND UNSATURATED TRIGLYCERIDES
SATURATED AND UNSATURATED TRIGLYCERIDES

Saturated triglyceride Unsaturated triglyceride


SATURATED AND UNSATURATED TRIGLYCERIDES
SATURATED AND UNSATURATED TRIGLYCERIDES

Solid Liquid
SATURATED AND UNSATURATED TRIGLYCERIDES

§ The formula for a saturated fatty acid is CnH2nO2

§ The formula for an Unsaturated fatty acid, with one double bond, is C H O
ROLE OF TRIGLYCERIDES
ROLE OF TRIGLYCERIDES

triglyceride

+
ROLE OF TRIGLYCERIDES
ROLE OF TRIGLYCERIDES
TRIGLYCERIDES AS AN ENERGY STORE
TRIGLYCERIDES AS AN ENERGY STORE

Sugar Fat
TRIGLYCERIDES AS AN ENERGY STORE
OTHER ROLES OF TRIGLYCERIDES
OTHER ROLES OF TRIGLYCERIDES

Otter

Seal

External forces are


absorbed by fats in the
body which protect the
important internal organs.

Kidney

Whale

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