Colostrum, the yellowish, sticky breast milk produced at the end of pregnancy, is recommended by WHO as the perfect food for the newborn, and feeding should be initiated within the first hour after birth.
The plasma membrane is a fluid mosaic. This means that it is flexible and made up of many different types of molecules. Phospholipids form the basic structure of a cell membrane, called the lipid bilayer. Scattered in the lipid bilayer are cholesterol molecules, which help to keep the membrane fluid consistent. Membrane proteins are important for
The phospholipid bi-layer and associated proteins is called the fluid mosaic model of the membrane's structure. 'Fluid' because the positions of the constituents are always changing and 'mosaic' because the membrane is made from different types of molecules. Cholesterol Cholesterol helps to regulate the fluidity of the membrane.