BIOMOLECULES AND ENZYMES

Detailed explanation-1: -Lipids perform many different functions in a cell. Cells store energy for long-term use in the form of lipids called fats. Lipids also provide insulation from the environment for plants and animals. For example, they help keep aquatic birds and mammals dry because of their water-repelling nature.

Detailed explanation-2: -Lipids are also used to insulate and protect your body. You have a layer of fat just below your skin that helps to keep your internal body temperature regular despite the external temperature. Your vital organs eg the kidneys, have a layer of fat around them that acts like bubble wrap to protect them from injury.

Detailed explanation-3: -The different varieties of lipids have different structures, and correspondingly diverse roles in organisms. For instance, lipids store energy, provide insulation, make up cell membranes, form water-repellent layers on leaves, and provide building blocks for hormones like testosterone.

Detailed explanation-4: -Triglyceride is the most common lipid that is used for energy storage. Triglycerides are the main body fat constituents for vertebrates. They are tri-esters comprising a glycerol molecule that is bound to three fatty acid molecules.

Detailed explanation-5: -Storing Energy Most of the energy required by the human body is provided by carbohydrates and lipids. As discussed in the Carbohydrates chapter, glucose is stored in the body as glycogen. While glycogen provides a ready source of energy, lipids primarily function as an energy reserve.