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
Fluid Mosaic Model. The structure of the cell membrane is arranged in what is known as the. selectively permeable. means that only certain molecules can pass through the membrane freely. Fluid. refers to flexibility of the cell membrane. Mosaic.