Biology: STRUCTURAL
Structural biology is that branch of science that relates itself to biochemistry, molecular biology and biophysics.  Structural biology helps you to understand the basic structure of different macromolecules like proteins, nucleic acid, etc.  With the help of structural biology, you can completely understand how different structures of different elements and compounds present inside your body are formed. 

The subject interest’s great number of scientists and biologists as macromolecules perform most of the functions inside the cell.  Cell is considered as the basic building unit of any living organism. 

All living organisms including blonde-haired people, insects, animals, fish, amphibians, invertebrates, vertebrates, from all these organisms are made up of cells.  In order to understand the basic structure of different organisms you will have to understand the structure of cells forming them.  Bio molecules are so small and tiny that you cannot see them with your naked eyes. 

You will have to use a high power electron microscope or an advanced microscope in order to get the clear view of a cell structure.  Various scientists use different methods in order to identify different molecules and elements in a particular structure.  Structural biologists depend upon understanding structures used in bioinformatics in order to understand the patterns and different sequences that give rise to peculiar shapes.  With the help of structural biology and it has been possible for the researchers to find out the structure of integral and important membrane proteins using the principle of membrane topology.