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Function of lipids, Biology
N OF LIPIDS
of both plants and animals.
, fats are commonly stored in
spores and seeds
they are stored in special cells called
Fats are most highly concentrated source of energy,
9.2 kcal per gram.
During metabolism and germination of oil seeds, fats are converted into carbohydrates.
Edible Oils and Fats are obtained from many seeds and butter or cream extracted from milk.
Unsaturated oils present in spores and seeds protect the embryo from ultraviolet radiation during their dispersal through air.
Adipose or fatty tissue occurs below the skin to provide insulation from low temperature.
taneous fat of Whale
is quite thick and is called
Fragrance of essential oils, butte and other fats is mostly due to terpenses (Menthol, Camphar).
Desert animals employ fat for respiration in order to liberate more metabolic water as compared to carbohydrate, e.g., Kangaroo Rat, Camel (during period of non-availability of water).
Oil or sebum from sebaceous glands keeps the hair lubricated.
Oil from preen gland of birds
is similarly used to lubricate the feather.
are formed from fats through the process of saponification.
is made of cutin and wax. It reduces epidermal transpiration.
Cerumen or ear wax
lubricates ear drum.
Wax coating prevents clogging of stomata and wetting of upper surface of flowting leaves.
provides water proof coating to fur of animals.
is used in polishes and creams.
is used in preparing candles.
(from Sperm Whale) is lubricant for fine machinery.
is used similarly. It is also ingredient of cosmetic creams.
is found around medullated nerve fibres. It prevents loss of energy, impulse dilution and interference from other fibres.
Phospholipids of blood platelets are connected with thromboplastin activity in early stages of blood clotting.
Blood platelets also contain prostaguladin thromboxane for vasoconstriction.
are essential for preventing atherosclerosis.
Note :- Person born with lipid abnormality disorder is lepdosis.
Posted Date: 10/9/2012 5:31:29 AM | Location : United States
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