Lipids, Biology

Assignment Help:

Lipids

All animal tissues contain lipids or fats as essential components of cell membrane. It is also stored in certain tissues. Lipids are body's chief source of energy and are essential for diverse functions such as insulation, padding synthesis of steroid hormones and carriers of fat soluble vitamins. Many animals can live on little or no dietary fat because it can be formed from proteins as well as carbohydrates. But the synthetic ability of many animals is limited in respect to certain unsaturated fatty acids and cholesterol.

For instance, vertebrates can synthesise cholesterol readily: In humans cholesterol is considered harmful in diet because it is a major factor in the development of atherosclerosis or hardening of arteries. On the other hand, insects cannot synthesise cholesterol from their precursors. Therefore, it must be supplied in their diet. Studies on rats show that three fatty acids - linoleic, Linolenic and archidonic acids are not synthesised. Therefore, they are considered essential fatty acids. Many insects, birds and some mammals also reveal such a dietary requirement of fatty acids. It seems that animals in general have a better synthetic ability for lipids than for amino acids.


Related Discussions:- Lipids

The halstead-reitan neuropsychological battery, The halstead-reitan neurops...

The halstead-reitan neuropsychological battery The beginnings of the battery can be traced to the special laboratory established by Halstead in 1935 for the study of neurosurgi

Solubility, Solubility You are aware that gases are soluble in liquid...

Solubility You are aware that gases are soluble in liquid. Solubility of a gas in a liquid depends on the partial pressure, temperature and presence of other solutes. Table

Are microorganisms directly or indirectly affects our lives, Describe 5 way...

Describe 5 ways that a microorganisms directly or indirectly affects our lives.

Process of evolutionary change, In that Unit you also learnt about Darwin, ...

In that Unit you also learnt about Darwin, who based on his extensive observations and interpretations showed that evolution is a simple fact of nature. It was Theodosius Dobzhansk

Objectives of the earth pressure and retaining structures, What are the obj...

What are the objectives of the earth pressure and retaining structures? After knowing all concepts about the same you should be able to learn: a. Know the field situations w

Define the determination of completion of reaction, Define the Determinatio...

Define the Determination of Completion of Reaction ? Several methods are used to determine when the reaction is complete. Some of these include (a) Observing an indicator (c

Explain brifly ribosomes- endoplasmic reticulum , Explain brifly Ribosomes,...

Explain brifly Ribosomes, Endoplasmic Reticulum, Golgi Apparatus ? Ribosomes, Endoplasmic Reticulum, Golgi Apparatus :  The cytoplasm contains many ribosomes, which are sphe

Explain the effect on serum proteins during pregnancy, Explain the Effect o...

Explain the Effect on serum Proteins during pregnancy? Total serum protein gradually decreases, along with a sharp decline in albumin. There is reduction in serum albumin along

Which is right of the resting membrane potential, Which is true of the rest...

Which is true of the resting membrane potential? A. It requires few ions to be distributed unevenly. B. It has the same value in all cells C. Only nerve and muscle cells h

Genetic, what are the limitation of mendelian experiment

what are the limitation of mendelian experiment

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd