study membrane proteins scientists

There is an increase in the amount of collagen proteins deposition in the intercellular spaces. This influences the permeability of cell membranes, affects the speed of diffusion of substances in and out and significantly influences the process of agei..

Cell Theory - Two German biologists M.J.Schleiden (1838) and Theodore Schwann (1839) proposed the cell theory (or cell doctrine), which unified the ideas prevailing at that period on the organisation in plants and animals. The cell theory states that All living organisms are composed of minute stru..

Summary - Protein synthesis is a controlled process in which a given protein is synthesised in the cell only when it is necessary. When a particular protein is to be synthesised the specific gene has to express and initiate transcription. The mechanism that stimulates ..

In the year 1972 Singer and Nicolson proposed a model for explaining the membrane structure, taking into account all the known facts. According to this model, cell membrane consists of a highly viscous fluid matrix of a bilayer of phospholipids having globular proteins..

The term biomembrane is used to describe the plasma membrane (cell membrane) and the membranes that surround the various cell organelles. The plasma membrane forms a protective covering around the cell to maintain its size and shape. In addition, it is a..

Biomolecules are complex organic molecules which built up living organism and form the basis of life. Biochemistry is the branch of chemistry which deals with the study of chemical composition and structure of living organism and chemical changes take place in them. Biochemical re..

At the turn of the nineteenth century, about 30 elements were known. 50 years later by the 1850s, scientists had discovered sixty three chemical elements and the numbers kept increasing. With the discovery and study of more and more elements and their compounds, the various dat..

Contractile proteins of membrane show their existence in folded or unfolded condition. Proteins in unfolded conditions are able to bind ions by free valencies exposed at membrane surface. Proteins in folded (contracted) condition release ions as fr..

These are long, slender thread-like structures, which help in locomotion. A bacterial cell may have one to many flagella. The flagella are entirely composed of a protein called flagellin. The basal body of each flagellum is directly attached to the plasma membrane. It is not co..

One of the strong indirect evidence for evolution comes from the study of Biochemistry of living organisms. Bio-chemically living organisms show considerable similarity. All organisms contain the same type of molecules, and almost all organisms control themselves through information cont..