NUTRITION
LIPIDS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
because they are polar
|
|
|
because they provide cell structure
|
|
|
because they are nonpolar
|
|
|
because they want to be
|
Detailed explanation-1: -They are water insoluble. Lipids are non-polar molecules while water is polar molecule, so there is no way for water to attach to a lipid molecule. Instead, the non-polar lipids will bind to themselves, which is why oils and fats form droplets on the surface of water.
Detailed explanation-2: -This is because they are primarily nonpolar carbon-carbon or carbon-hydrogen bonds in hydrocarbons. Hydrophobic, or “water repelling, ‘’ non-polar compounds cannot dissolve in water. In a cell, lipids serve numerous purposes.
Detailed explanation-3: -Most lipids are non-polar (having no charged areas) or only slightly polar, with a very few charged areas. Water mixes with hydrophilic (water-loving) compounds by sticking to their charged groups. Since lipids lack charged groups, the water molecules have nothing to stick to and don’t mix with them.