Best answer: Which of these correctly describes the fluid mosaic model and the part of the cell to which it applies?

What best describes the fluid mosaic model of the plasma membrane?

The fluid mosaic model describes the structure of the plasma membrane as a mosaic of components —including phospholipids, cholesterol, proteins, and carbohydrates—that gives the membrane a fluid character. … The proportions of proteins, lipids, and carbohydrates in the plasma membrane vary with cell type.

Which of the following statements correctly describes the fluid mosaic model?

Which of the following statements best describes the fluid mosaic model of the plasma membrane? right answer feedback: The fluid mosaic model of the plasma membrane is composed of two layers of lipid molecules with protein molecules dispersed within.

Which of the following describes the structure of the fluid mosaic model of membranes?

The fluid mosaic model describes the structure of the plasma membrane as a mosaic of components —including phospholipids, cholesterol, proteins, and carbohydrates—that gives the membrane a fluid character. … The proportions of proteins, lipids, and carbohydrates in the plasma membrane vary with cell type.

IT IS SURPRISING:  What year is Lilo and Stitch set in?

Why fluid mosaic model is popularly accepted?

Biological Membranes are very small (7-10nm). At this size it is very hard to see the exact structure, even with an electron microscope. We therefore don’t know for sure exactly what’s going on, however, the Fluid Mosaic Model is generally accepted as describing how membranes are arranged.

Why is the plasma membrane referred to as a fluid mosaic?

Explanation: It is sometimes referred to as a fluid mosaic because it has many types of molecules which float along the lipids due to the many types of molecules that make up the cell membrane. For example , there are a lot of types of proteins embedded in the membrane.

What is Amphipathic in a fluid mosaic model?

Explanation: The fluid mosaic model states that amphipathic proteins are embedded in the phospholipid bilayer. The cell membrane is a fluid mosaic of phospholipids and proteins. … This membrane structure results in selective permeability of the cell membrane, allows for cell-cell adhesion, and cell signaling.

Which sentence best describes the fluid mosaic model?

D is correct. The Fluid Mosaic Model describes the liquid-like movement of the lipids, proteins, and carbohydrates that make up the plasma membrane. These components travel freely across its surface. 3.

What is fluid mosaic model in simple words?

The fluid mosaic model is a way of describing the structure of cell membranes. The model likens the membrane to a “mosaic” of different components, consisting of a fluid or elastic double layer made up of lipid molecules and large protein molecules. … Lipids and proteins are the basic building blocks of living cells.

IT IS SURPRISING:  You asked: How do you sew knit fabric on a regular sewing machine?

Who proposed fluid mosaic model?

The fluid mosaic hypothesis was formulated by Singer and Nicolson in the early 1970s [1]. According to this model, membranes are made up of lipids, proteins and carbohydrates (Figure 1).

Why is the membrane fluid?

Cell membrane is fluid because individual phospholipid molecules and proteins can diffuse within their monolayer and thus move around. The fluidity is affected by: The length of the fatty acid chain. Here, the shorter the chain the more fluid is the membrane.

What is the role of cholesterol in cell membranes?

Cholesterol plays has a role in membrane fluidity but it’s most important function is in reducing the permeability of the cell membrane. … Cholesterol can fit into spaces between phospholipids and prevent water-soluble molecules from diffusing across the membrane.