Download - Lipids and fats 2
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.