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
You are made up of trillions and trillions of cells, and each one is separated. from its surroundings by a cell membrane. Learn about the structure and functions of the cell membrane in this lesson. The Cell Membrane is a Fluid Mosaic A cell is the basic unit of life, and all organisms are made up of one or many cells.