Lipids, Fats, and Biochemistry

This class includes pigmented lipids.

Lycopene is a caretenoid containing 13 double bonds.

Hydrolysis of fats by alkali is called saponification and it results in the formation of soaps.

These fatty acids cannot by synthesised by the body. As they have to be provided in the diet, they are essential fatty acids.

It is secreted by the sebaceous gland of sheep’s skin. It is obtained from the wool of sheep. It is called wool fat.

Fats are a source of metabolic water for desert animals. Metabolism produces about 110 grams of water per 100 grams of fat.

It is a saturated fatty acid.

They control the permeability of the cell membrane. It is the chief constituent of the cell membrane.

Lipids exhibit all of the above listed properties.

Subcutaneous fat distribution contributes significantly to body contours, particularly in females where it helps create rounded contours and softer body outlines. This is a sexual dimorphism trait in human anatomy.

Enzymes are biological catalysts that speed up chemical reactions in living organisms. While most enzymes are proteins made of amino acid chains, a few are RNA molecules (ribozymes). The other options - vitamins, fats, and lipids - serve different biological functions: vitamins are organic compounds needed in small amounts, fats are energy storage lipids, and lipids are a broad category of hydrophobic molecules.

Muricholic acids are a group of bile acids found in mice.

Deoxycholic acid is a bile acid. Bacteria metabolise chenodeoxycholic acid into secondary bile acid lithocholic acid.

This is the correct option. Jaggery is a source of carbohydrates, and not fats.