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

Explain the prokaryotic and eukaryotic core promoters, Which of the followi...

Which of the following is a false statement regarding prokaryotic and eukaryotic core promoters? A. The core promoters of eukaryotic genes have more recognition elements for ge

Respiration, explain the 4 stages of aerobic respiration

explain the 4 stages of aerobic respiration

Explain the biomechanics of cantilevers, Explain the biomechanics of cantil...

Explain the biomechanics of cantilevers The biomechanics of cantilevers need to be understood. It has been found that when a three unit prosthesis is supported by two implants

What is placoid scale. elaborate in detail., What is Placoid scale? Elabora...

What is Placoid scale? Elaborate in detail. Scales characteristic of cartilaginous fish. Formed from the dermis, scale is anchored in that layer by a basal plate composed of de

Vacuoles, VACUOLES They are of 4 types - 1.       Sap Vacuole - ...

VACUOLES They are of 4 types - 1.       Sap Vacuole - Outer membrane of sap vacuole is called T onoplast . Sap vacuole contains amino sugars, carotenoids, proteins, m

State the term - neuropsychologists, State the term - neuropsychologists ...

State the term - neuropsychologists Disorders of speech, language, reading, writing, and mathematical abilities are understood in terms of linguistics and the psychology of lan

What is the procedure of uristix, What is the Procedure of Uristix 1. C...

What is the Procedure of Uristix 1. Collect the urine. 2. Remove one strip from bottle and replace cap. 3. Completely immerse reagent areas of the strip in urine and remo

What can be deduced about the genotype, In pet rabbits, brown coat colour i...

In pet rabbits, brown coat colour is recessive to black coat colour. A black female rabbit gives birth to four black-coated and three brown-coated baby rabbits. What can be deduced

Female reproductive system - vagina, V AGIN A - Median, elastic, musc...

V AGIN A - Median, elastic, muscular tube 7.5 cm long. Open into vestibule by vaginal orffice. The lining forms vaginal rugae. Space between vaginal wall & cervix is forn

Oligosaccharides, OLIGOSACCHARIDES They are small-sized polymers of ...

OLIGOSACCHARIDES They are small-sized polymers of monosaccharides having 2 - 6 simple sugars, occasionally upto 9 - 10. Oligosaccharides are soluble in water, sweet to t

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