Fats and Lipids

LIPIDS

TRIGLYCERIDES

FATS

Doesn’t Matter

Rest of the World Doesn’t

Matter Either

Fats are made up

of:

• Fatty Acid Chains

• Glycerol

• And other complicate

d stuff which you need not know now

Summing Up Everything

LipidsHydrophobicAmphiphilicCrystalline

LIPIDS

A broad group of naturally occurring molecules that are generally soluble in

organic solvents but sparingly

soluble in water.Long chain-hydrocarbons that are constituent elements of fats.

Fatty AcidsTriglyceridesAnother classification of lipids. Fats are a type of triglycerides,

though they are made up of fatty acids and glycerides.

TYPES OF LIPIDS

LIPIDS

•Glycerol•Sterol lipids•Prenol lipids•Fat-soluble vitamins

etc.

TYPES OF LIPIDS

The Rise of the

Fatty Acids!

Chapter: 1

CHARECTERISTICS

Fatty Acids may be Saturated or Unsaturated

Thought for the Day

- Baba Wikipedia

Saturated Unsaturated•Saturated fatty acids form saturated fats

•Unsaturated fatty acids form unsaturated fats (duh!)

•Animal fats are generally saturated fats

•Plant fats are generally unsaturated fats

Saturated UnsaturatedSaturated fats remain solid at room temperature as their melting points are relatively high.

Unsaturated fats are liquid at room temperature as their melting points are low.

Structure of

Lipids1.Simple Lipid2.Phospholipi

d

1. Simple Lipid

Saturated with hydrogen atoms, i.e.- carbon atoms are bound to as many hydrogen atoms as possible. Each carbon atom is generally joined by single bonds.

Not necessarily bound to as many hydrogen atoms as possible. They may be bound by a covalent bond instead(double, triple bond etc)s

Saturated Unsaturated

Structure of Simple Lipids:Fatty Acids

2. Phospholipid

•Polar head is hydrophyllic, i.e.- it is attracted (phil) to water (hydra)

•Non-polar tail is hydrophobic, i.e.- its is repulsed (phobe) by water (hydra)

•Polar head faces and interacts with water

•Non-polar tails stay away from water

This structure makes lipids sparingly soluble

•Polar head appears as round in shape

•Non-polar tail appears as…umm…tails

Remember the features of lipids

for the next question

HydrophobicNon-Polar

Tails

HydrophilicPolarHeads

A Phospholipid Particle

Question: State the names of the parts of the phospholipid particle shown.

Water [Hint]

Water [Hint]

FatsSECONDARY

SOURCE OF

ENERGY

MAINTAIN

EQUILIBRIU

M IN

THE BODY BY

STRORING

EXCESSIVE FOREIG

N

PARTICLES AS C

ELLS FORM ADIPOSE TISSUES (CONECTIVE TISSUES) WHICH GIVE SHAPE TO THE BODY AND INSULATES BODY HEAT

FORMS AN

ESSENTIAL

PART OF CELL

MEMBRANES

ACTIVE ENDOCRINE TISSUE

REQUIRED

FOR THE

ABSORPTION

OF FAT-

SOLUBLE

VITAMINS (A,

DE, E & K)

Extreme Diets

Extreme 1 Extreme 2

Percentage of Nutrients in a Balanced Diet

Carbs

Fats

Proteins

Saturated fats Unsaturated fats Solidifies when cooled. Does not solidify when cooled.

Raises cholesterol Does not raise cholesterol

Stable Unstable

Avoid it (ask ‘Why?’ just to bug Ayush)

Exceptions:

• Poultry oil

• Fish oil

Use it

Exceptions:

• Coconut oil

These were some important facts of life.

You are now enlightened,You are free to take flight,

You shall now attain Nirvana…P.S.: The background is awesome.