Structural Biochemistry/Organic Chemistry/LipidsSome common types of lipids are natural fats triglyceridewaxes, sterols, fat-soluble vitamins like vitamins A, D, E and Kmono glycerides, diglycerides and phospholipids. Lipids are primarily involved in the formation of cell membranes which is a bilipid layer general structure of neutral fats phospholipids and steroids present in all living things like bacteria and human. Lipids ad present in the form of more complex structures such as cholesterol and other biologically active molecules in living systems. Lipids act as best energy storage molecules as the cleavage of fatty acids produces both energy and metabolic water which is a main component in almost all prohormone trenbolone. Other examples of lipids like waxes also contains fatty acids.
Solved: What are the general structures of neutral fats, phosph | cialispanettet.top
Some common types of lipids are natural fats triglyceride , waxes, sterols, fat-soluble vitamins like vitamins A, D, E and K , mono glycerides, diglycerides and phospholipids. Lipids are primarily involved in the formation of cell membranes which is a bilipid layer and present in all living things like bacteria and human. Lipids also present in the form of more complex structures such as cholesterol and other biologically active molecules in living systems.
Lipids act as best energy storage molecules as the cleavage of fatty acids produces both energy and metabolic water which is a main component in almost all lipids. Other examples of lipids like waxes also contains fatty acids. Another group of lipids; sterols like cholesterol is a lipid as most of us know about.
Some sterols also act as hormones like estrogens, testosterone, and progesterone, cortisol which are chemical messengers enter in cells and turn on specific chemical reactions. Over 11,, live tutoring sessions served! To get the best deal on Tutoring, call Toll Free.
Home How it works About Us. Different Types of Lipids Back to Top. The classification of lipids can be structural based or based on their functions. Mainly lipids are classified in five types. Those fatty acids which are directly linked to a sugar backbone are known as saccharolipids. Lipids are naturally occurring molecules that are all soluble in organic solvents.
The group of lipids encompasses compounds of large structural diversity. There are four main groups of lipids, fatty acids, glycerides, nonglyceride lipids, and complex lipids. Other systems are based on their chemical properties. In addition, physiological lipids such as phospholipids, cholesterol and triglycerides are important as major components of lipid based control drug delivery.
Out of all lipid compounds; three types of lipids are more common. Triglycerides Back to Top. They are also called as neutral fats. The triglycerides have ester as functional group which comprised of one glycerol molecule 1,2,3-trihydroxypropane combined with three fatty acids molecules. Fatty acids in triglycerides can be saturated or unsecured with a long aliphatic hydrocarbon chain and one carboxyl group.
The hydrocarbon chain is hydrophobic in nature due to non-polarity, while the polar carboxyl group is hydrophilic in nature and oriented towards water in aqueous solution.
Generally, fats formed from saturated fatty acids have a high melting point and exist in solid state at room temperature. However unsaturated fats exist in a liquid state with low melting point. For example; butter is an animal fat found in solid state while vegetable oils are found in liquid state. Triglycerides molecules are considered for efficient energy storing as more energy could be stored in a pound of fat compared to a pound of carbohydrates like glycogen. Some common triglycerides with their compositions are as follow.
Steroids Back to Top. This class of lipids shows many similarity with triglycerides except the fact that they are hydrophobic in nature. They are metabolic derivative of terpenes with tetracyclic skeleton of three fused six-member and one five-member ring.
Phospholipids Back to Top. They are phosphate derivatives of triglycerides and is composed of a glycerol molecule with a couple of fatty acids or diglyceride and a phosphate group with some polar molecule like serine, choline or ethanolamine. They also have one hydrophilic end with hydrophobic at another end and such type of molecules are known as amphipathic. In the aqueous solution of phospholipids; the hydrophobic end will tend to aggregate together away from water and the hydrophilic part that is polar phosphate group are oriented towards the molecules of water and tend to dissolve in it.
Hence, these appear as small spherical solids in water in which the hydrophobic "tails" aggregate together in the spherical center and with the phosphate "head" which is hydrophillic oriented towards water.
Lecithin is the most common example of phospholipid which is a major component in the lipid bilayers of cell membranes. Another example of phospholipid is Cephalins which composed of ehtanolamine or the amino acid serine bonded with a phosphate group through phosphate ester linkage. This phospholipid is found in cell membranes of brain tissues and involve in the blood clotting process. A Structure of an Atom.