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

Secretion of hormones, Secretion of Hormones The secretion of most hor...

Secretion of Hormones The secretion of most hormones (except steroid) is by the process of exocytosis. Figure summarises the formation, transport, release and reconstitution o

Aschelminthes, in what part of the human body aschelminthes found?

in what part of the human body aschelminthes found?

Mitosis, explain mitosis in detail

explain mitosis in detail

Define drug effects on food intake - gastro intestinal tract, Define Drug E...

Define Drug Effects on Food Intake - gastro intestinal tract? Affect the gastro intestinal tract: Gastrointestinal irritation and ulceration are serious problems with many drug

Write short note on cholesterol, Cholesterol, from stereos (solid) and the...

Cholesterol, from stereos (solid) and the Greek chole- (bile) followed by the chemical suffix -ol for an alcohol is an organic chemical substance classified as a waxy steroid of fa

What do you mean by blinking and peering in the eyelid, What do you mean by...

What do you mean by blinking and peering in the eyelid? Blinking and Peering: Blinking considers as to the opening and closing movements of the eyelid. The function of b

Explain the loss of carotenoids, Explain the loss of carotenoids In pro...

Explain the loss of carotenoids In processing fruits and vegetables, loss of carotenoids into cooking or canning water is very slight. However, carotenoids undergo oxidation wh

Microfilaments - role of cytoskeleton structures, Microfilaments - Role of ...

Microfilaments - Role of Cytoskeleton Structures Microfilaments are as well present in all animal cells. They are found singly throughout the cytoplasm organized like a meshwo

What are the results of pulmonary artery banding, What are the Results of p...

What are the Results of pulmonary artery banding ? Results of surgery for ventricular septa1 defects are excellent. Though the mortality is not 0 per cent, in a large series it

How is heart contraction triggered, Q. How is heart contraction triggered? ...

Q. How is heart contraction triggered? Heart contraction is independent from neuronal stimulus although it can be modulated by the autonomous nervous system in the heart there

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