8. Cephalin is a :- *
1 point
Saturated fatty acid
Unsaturated fatty acid
Conjugated lipid
Derived lipid
Answers
Answer:
Unsaturated fatty acid .....is the correct answer ...
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Answer:
Lipids are made of the elements Carbon, Hydrogen and Oxygen, but have a much lower proportion of water than other molecules such as carbohydrates.
Unlike polysaccharides and proteins, lipids are not polymers—they lack a repeating monomeric unit.
They are made from two molecules: Glycerol and Fatty Acids.
A glycerol molecule is made up of three carbon atoms with a hydroxyl group attached to it and hydrogen atoms occupying the remaining positions.
Fatty acids consist of an acid group at one end of the molecule and a hydrocarbon chain, which is usually denoted by the letter ‘R’.
They may be saturated or unsaturated.
A fatty acid is saturated if every possible bond is made with a Hydrogen atom, such that there exist no C=C bonds.
Unsaturated fatty acids, on the other hand, do contain C=C bonds. Monounsaturated fatty acids have one C=C bond, and polyunsaturated have more than one C=C bond.
Structure of Triglycerides
Triglycerides are lipids consisting of one glycerol molecule bonded with three fatty acid molecules.
The bonds between the molecules are covalent and are called Ester bonds.
They are formed during a condensation reaction.
The charges are evenly distributed around the molecule so hydrogen bonds to not form with water molecules making them insoluble in water.