How Is a Cells Membrane Suited to Its Functions

How is a cell’s membrane structure suited to its functions? Throughout the past century, scientists have been able to conduct more research on the structure of a cell membrane and understand its components and functions. The present agreed on model, created in 1972 by S. J. Singer and G. Nicolson, is called the fluid mosaic model. This model depicts that proteins (integral and peripheral) form a mosaic since they are floating in a fluid layer of phospholipids, which makes up the components of the cell membrane (along with cholesterol). Each of these parts of the membrane enables it to be more efficient. The purpose of a cell membrane is to support and protect the cell, but also to control the movement of materials in and out of it. It†¦show more content†¦They may also use facilitated diffusion6 instead of active transport. The movement of substances across the membrane through this protein, whether using active transport or facilitated diffusion, is referred to as carrier mediated transport. Unlike integral proteins, peripheral proteins do not extend into the hydrophobic region of the bilayer but remain bound to the surface of the membrane. They are often anchored to an integral protein and are also easier to analyze for scientists sinceShow MoreRelatedIntroduction to Cell Tissue and Organ1667 Words   |  7 PagesTitle: Introduction to cell, tissues and organ Objectives: 1. To study the different type, function, structure and histology of cell, tissue, and organs in human body. 2. To learn how to identify different cell and tissue based on their structure and shape. 3. To learn how to use the microscope properly to observe the slide of different cell and tissue. Introduction: Cell is the basic structural and functional units of an organism that are composed of chemicals. Cell is the smallest living unitRead MoreFossil Fuel Consumption and Greenhouse Gas Emission Essay1363 Words   |  6 Pagestheir limits and fuel economy has been maxed out. While a shift in consumer preference to smaller and more fuel efficient automobiles would decrease consumption and emissions, the economic model alone will not prompt such a change. The hydrogen fuel cell’s new technology calls for a radical change in design approaches that will test the automakers that choose to mass-produce this technology. The hydrogen harvesting methods required to power the fuel cells have environmental challenges. RegardlessRead MoreThemes in the Study of Life5755 Words   |  24 PagesPosing questions about the living world and seeking science-based answers are the central activities of biology, the scientific study of life. †¢ Biologists ask a wide variety of ambitious questions. ââ€"‹ They may ask how a single cell becomes a tree or a dog, how the human mind works, or how the living things in a forest interact. †¢ Biologists can help answer questions that affect our lives in practical ways. †¢ What is life? ââ€"‹ The phenomenon of life defies a simple, one-sentence definition. ââ€"‹ WeRead MorePreliminary Biology Yearly Notes6280 Words   |  26 PagesEarth’s surface. * Terrestrial and aquatic environments have very different abiotic characteristics. Abiotic Characteristics Characteristic | In Aquatic environments | In Terrestrial environments | Viscosity – viscosity is a measure of how hard it is to move through a gas or a liquid (fluid) | High viscosity – organisms have to be streamlined | Low viscosity; little resistance to movement | Buoyancy – buoyancy is the amount of support experienced by an object immersed in a liquid orRead MoreSexually Transmitted Diseases35655 Words   |  143 PagesSimple Machines 93-99 Unit 5 The Physical Environment Weather and Climate 100-113 Soils 114-128 Unit 6 Living things in the Environment Plant and animal cells 129 Eukaryotes vs prokaryotes 130 Structures and functions 133-137 Microbes 148-150 Onion and cheek cells 150-151 Ecological study 154 Seed structure and germination 155-157 Reproduction in plants 158-165 Sexually transmitted diseases 166-176 Birth Control and contraceptives