Question

Lipids are classified into 3 main types, which includes
(A) Simple lipids
(B) Compound lipids
(C) Derived lipids
(D) All of them

Answer 1

Hint : To answer this question, we first need to understand what is. A lipid is a material that is insoluble in water but soluble in alcohol, ether, and chloroform in chemical terms. Lipids are a crucial component of all living organisms. Fatty acids, neutral fats, waxes, and steroids are all lipids (like cortisone).

Complete Step By Step Answer:
Henri Braconnot categorized lipids (graisses) into two groups in 1815: suits (solid greases or tallow) and huiles (liquid greases or lard) (fluid oils). Michel Eugène Chevreul created a more complete classification system in 1823, which included oils, greases, tallow, waxes, resins, balsams, and volatile oils (or essential oils).
Lipids include fats, oils, waxes, certain vitamins (such as A, D, E, and K), hormones, and the non-protein portion of the cell membrane. Lipids are nonpolar and so insoluble in water, but they are soluble in non-polar solvents such as chloroform.
Simple, complex, and derived lipids are the three types of lipids.
Simple lipids - A simple lipid transports no additional substance than a fatty acid ester of various alcohols. These lipids are a diverse group of primarily nonpolar chemicals that are soluble in nonpolar organic solvents such as chloroform and benzene but insoluble in water.
Compound lipids - Esters of fatty acids and alcohols with extra groups are known as compound lipids. Heterolipids is another name for them. Compound lipids are classified as follows based on the existence of an extra group: Phospholipids are lipids that are made up of phospholipids. Fatty acids, alcohol, phosphoric acid, and nitrogenous bases make up phospholipids.
Derived lipids - Derived lipids are the hydrolysis products of simple and complex lipids. Fatty acids, glycerol, sphingosine, and steroid derivatives are among them. Steroid derivatives are phenanthrene structures that are distinct from fatty acid-based lipids.
So, the final answer is option (D) i.e. All of them.

Note :
Lipids serve as energy storage (fats/oils), membrane constituents (glycerophospholipids, sphingolipids, cholesterol), hormones (steroids), vitamins (fat soluble), oxygen/ electron carriers (heme), and other functions in cells.