Lipids are the naturally taking place hydrophobic molecules. They are the heterogeneous group of compounds associated with the fatty acids. They comprise oils, fats, phospholipids, waxes, and other components. The lipids are oily or greasy organic components, they are sparingly soluble in water, and are soluble in organic solvents.
The following are the functions of lipids:
1. They are storage compounds, the triglycerides functions as the reserve energy of the body.
2. They are the essential constituents of the cell membranes composition in the eukaryotic cells.
3. They form a waxy covering on the plant leaves, fruit, and young stems known as the cuticle. It is formed of cutin, a wax-like substance generated by the plant, which is chemically a hydroxy fatty acid. The covering helps the plant to retain water.
Hence, the correct answers are options B, D and E.
The functions of lipids are:
So, options B, D, and E are correct.
A lipid is a substance that is insoluble in water and soluble in alcohol, ether, and chloroform. They are important components of living cells.
Lipids stores energy in the form of triglycerides. So, the lipid is considered as an energy reserve compound in the animal cells.
Due to its hydrophobic nature, it is one of the important components of the cell membrane along with proteins.
Lipids function as water repellents on the surface of leaves of some plants, as it forms the waxy leaf covering. This protects the leaf from certain insects.
Therefore, the functions of lipids are forming waxy leaf coverings, storing energy in fat cells, forming cell membranes.
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