Definition Of Lipids | Classification, Importance, Types & Properties |

Definition of lipids too Explanation.

"Definition of lipids" Lipids are naturally occurring organic compounds of plants too animals which are soluble inwards organic solvents too belong to a really heterogeneous grouping of substances.

Explanation:

The give-and-take 'lipid' is derived from the Greek give-and-take 'lipas' which hateful fats. Lipids on hydrolysis arrive at obese acids too alcohols. Those lipids which arrive at obese acids too alcohol are referred equally uncomplicated lipids.

Types of lipids:

Simple lipids tin hold upwardly farther divided into 2 classes:

1. Fats too oils: These lipids arrive at long-chain obese acids too glycerol upon hydrolysis.
2. Waxes: These lipids arrive at long-chain obese acid too long-chain alcohols upon hydrolysis.

Characteristics of lipids:

They are insoluble inwards water.
They are soluble inwards non-polar solvents similar ether, chloroform too benzene.
They are P^o-building blocks of:

1. Fatty acids
2. Glycerol
3. Sterols

They tin hold upwardly utilized past times living organisms.

Fats too oils are 'major nutrient factors':

Fats too oils are the nigh of import lipids institute inwards nature. These are alongside the 3 major nutrient component subdivision required for the human body:

1. Proteins
2. Carbohydrates
3. Fats too oils

Fats too oils are widely distributed inwards nature too convey keen nutritional values. They render unloose energy to the animate existence trunk for maintaining optimum trunk temperature.

Fats too oils equally sources of other substances:

These edible fats too oils are equally good used equally raw textile for the industry of the next substances:

1. Soaps
2. Detergents
3. Paints
4. Varnishes
5. Polishes
6. Glycerols
7. Lubricants
8. Drying oils
9. Cosmetics
10. Printing inks
11. Pharmaceuticals

Classification of lipids.

'Classification of lipids' into 3 types:

Simple lipids:

Simple lipids are the ester of obese acids with glycerol.

Example:

The mutual fats too oils are the best trial of uncomplicated lipid.

Compound lipids:

Compounds lipids incorporate radicals inwards add-on to obese acids too alcohols. They include:

1. Glycerol phospholipids.
2. Sphingolipids.
3. Lipoproteins.
4. Lipopolysaccharides.

Derived associated lipids:

These lipids are hydrolytic products of the above-mentioned compounds. Following are around of import examples:

1. Diglycerides obese acids.
2. Sterols.
3. Vitamin D
4. Terpenes

Importance of lipids.

There is around Importance of lipids.

1. They are a adept source of unloose energy too brand the nutrient to a greater extent than palatable.
2. They exert an insulating trial on the nervous tissues.
3. They are adept unloose energy reservoirs inwards the body.
4. Lipids are an integral business office of prison theater mobile telephone protoplasm too prison theater mobile telephone membranes.
5. Some lipids deed equally precursors of really of import physiological compounds. For example; cholesterol is the precursor of steroid hormones.

Physical Properties of lipids.

1. Oils too fats may hold upwardly either liquids or non-crystalline solids at room temperature.
2. Fats too oils inwards the pure states are colourless, odourless too tasteless.
3. The color of obese arises due to unusual substances. For example, the yellowish color of the butter is due to the presence of keratin.
4. They are lighter than water.
5. They are insoluble inwards water.
6. They are readily soluble inwards organic solvents similar diethyl ether, carbon disulphides, acetone, benzene, chloroform too carbon tetrachloride.
7. They shape emulsions when they are agitated with H2O inwards the presence of lather or around other emulsifier.
8. Fats too oils are miserable conductor of estrus too electricity too serve equally splendid insulator for the animate existence body.