how the cell itself ful fill its requirement of any specific protein which is necessary for the cell membrane
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Answers
Answer:
Explanation:We have seen that each type of protein consists of a precise sequence of amino acids that allows it to fold up into a particular three-dimensional shape, or conformation. But proteins are not rigid lumps of material. They can have precisely engineered moving parts whose mechanical actions are coupled to chemical events. It is this coupling of chemistry and movement that gives proteins the extraordinary capabilities that underlie the dynamic processes in living cells.
In this section, we explain how proteins bind to other selected molecules and how their activity depends on such binding. We show that the ability to bind to other molecules enables proteins to act as catalysts, signal receptors, switches, motors, or tiny pumps. The examples we discuss in this chapter by no means exhaust the vast functional repertoire of proteins. However, the specialized functions of many of the proteins you will encounter elsewhere in this book are based on similar principles.
Answer:
The proteins in the plasma membrane typically help the cell interact with its environment. ... Many proteins can move within the plasma membrane through a process called membrane diffusion. This concept of membrane-bound proteins that can travel within the membrane is called the fluid-mosaic model of the cell membrane.