Lipids are not soluble in water because lipids are composed only of carbon and hydrogen thus because of the presence of a non polar region it produces an effect called hydrophobic, which results in the polar ends to align outwards the solvent and non polar area orient inwards apart from the polar solvent.
Thus when the lipids come in contact with the solvent, they are not insoluble in water.
Examples of lipids: phospholipids, steroids, cholesterol, waxes.
<span>False Lipids consist of glycerol and fatty acids and are constructed from fats, oils, waxes, phospholipids and steroids. A lipid's function is to insulate the body and provide warmth in cold conditions. It can be concluded that a person with very little body fat gets very cold easily and a person with a lot of body fat gets very warm very quickly. </span>
Fertile soils teem with life. Porous loamy soils are the richest of all, laced with organic matter which retains water and provides the nutrients needed by crops. Sand and clay soils tend to have less organic matter and have drainage problems: sand is very porous and clay is impermeable.
Metabolism means <span> biochemical processes that occur within a living organism and consist of anabolism which means build up </span>substance and catabolism which means breakdown substance
Muscles pull on the joints, allowing us to move.Muscles make up half of a person's body weight. They are connected to bones by tough, cord-like tissues called tendons, which allow the muscles to pull on bones. If you wiggle your fingers, you can see the tendons on the back of your hand move as they do their work.
