NEET BIOLOGY

Detailed explanation-1: -Lipid molecules consist mainly of repeating units called fatty acids. There are two types of fatty acids: saturated fatty acids and unsaturated fatty acids. Both types consist mainly of simple chains of carbon atoms bonded to one another and to hydrogen atoms.

Detailed explanation-2: -Lipids are an essential component of the cell membrane. The structure is typically made of a glycerol backbone, 2 fatty acid tails (hydrophobic), and a phosphate group (hydrophilic). As such, phospholipids are amphipathic.

Detailed explanation-3: -7.2. Triglyceride is the simplest lipid composed of three fatty acids that are connected with ester linkage with a glycerol unit. The main function of triglyceride is to store energy for later use.

Detailed explanation-4: -The simplest unit of fat is the fatty acid. Fatty acids are composed of simple hydrocarbon chains with special chemical groups at each end: a methyl group on one end and a carboxylic acid group at the other.