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

Eukaryotic chromosomes, The vast amount  of genomic  DNA in a eukaryotic  c...

The vast amount  of genomic  DNA in a eukaryotic  cell is strongly  packaged  in chromosomes  having  within  a specialized  organelle and  the nucleus.  This very vast amount of e

Define stress echocardiography with adenosine, Q. Define Stress Echocardiog...

Q. Define Stress Echocardiography with Adenosine? These have all been described. The information is that of wall motion abnormality indicating ischaemia. Ejection fraction can

How surgical technique affect osseointegration, How Surgical technique affe...

How Surgical technique affect Osseointegration The osteotomy preparation is critical both from biologic and biomechanical points of view. The bone drilling should be sequential

Cell biology, what is the role of cholesterol in membrane fluidity?

what is the role of cholesterol in membrane fluidity?

What are the important organic molecules for living being, What are the mos...

What are the most important organic molecules for living beings? There are many kinds of organic molecules that are significant for the living beings. Especially vital are amin

Explain the term blood, Explain the term Blood Blood is a fluid and con...

Explain the term Blood Blood is a fluid and consists of plasma and blood cells. More than 90 percent of plasma is water. Other constituents of plasma are plasma proteins i.e. a

Subphylum sarcodiha, Subphylum Sarcodiha Pseudopodia typically presen...

Subphylum Sarcodiha Pseudopodia typically present; flagella present in developmental stages of some species; free living or parasitic. Superclass - Rhizopoda Loc

What are lichens, What are lichens? How do fungi participate in this ecolog...

What are lichens? How do fungi participate in this ecological interaction? Lichens are produced by mutualist ecological interaction among fungi and algae or among fungi and cya

Write the meaning of life style modification, Write the meaning of Life Sty...

Write the meaning of Life Style Modification (LSM) Life style modification means diet control and doing exercises. Diet control and exercise should be planned on individual bas

Why do c4 plants have dimorphic chloroplasts, a) Why do C 4 plants have di...

a) Why do C 4 plants have dimorphic chloroplasts? Describe the different steps involved in C 4 photosynthetic carbon cycle in such plants.

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