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.
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. Plasma membranes range from 5 to 10 nm in thickness. … For example, myelin contains 18% protein and 76% lipid.
Which of the following best describes how the structure of the fluid mosaic model of the cell membrane controls the movement of substances in and out of the cell?
Which of the following best describes how the structure of the fluid mosaic model of the cell membrane controls the movement of substances in and out of the cell? It contains enzymes, which are layered around the membrane and facilitate endocytosis.
Which statement 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.
Which of the following statements best describes the structure of a membrane based on fluid mosaic model?
Which of the following statements about a typical plasma membrane is correct? … Which of the following statements best describes the structure of a membrane based on the fluid mosaic model? The membrane is composed of a fluid bilayer of phospholipids with embedded amphipathci proteins. You just studied 63 terms!
Why is fluid mosaic model considered as the best model?
Nicolson in 1972, describes the cell membrane as a two-dimensional liquid that restricts the lateral diffusion of membrane components. … The fluid mosaic model is the most acceptable model of the plasma membrane. Its main function is to separate the contents of the cell from the exterior.
Which statement best describes the plasma membrane?
Which statement best describes the plasma membrane of a living plant cell? It selectively regulates the passage of substances into and out of the cell. This is also known as the cell membrane.
How does the fluid mosaic model account for the observed properties of cellular membranes?
Explain how the fluid mosaic model accounts for the observed properties of cellular membranes. The fluid mosaic model shows how the phospholipid bilayer is created and makes up the plasma membrane. … A higher membrane surface area means that the cell can absorb more nutrients.
Why the cell surface membrane is described as 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. … The liquid part is the lipid bilayer which floats along the lipids due to the many types of molecules that make up the cell.
How does the fluid mosaic model allow for membrane transport?
Cell membranes are represented according to a fluid-mosaic model, due to the fact that they are: Fluid – the phospholipid bilayer is viscous and individual phospholipids can move position. Mosaic – the phospholipid bilayer is embedded with proteins, resulting in a mosaic of components.
Which of the following best describes the structure of the plasma membrane quizlet?
Which of the following best describes the structure of the plasma membrane? The plasma membrane is a phospholipid bilayer surrounding the cell.
Which of the following statements about typical plasma membrane is correct?
Cards In This Set
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| Which of the following statements about a typical plasma membrane is correct? | The sides of the plasma membrane that face the cytoplasm and the outside of the cell have different lipid and protein composition. |
Which best describes the structure of the phospholipids of the lipid bilayer?
Two layers of phospholipids where the outer layer has the hydrophilic heads facing toward the outside of the cell and the inner layer have the hydrophobic tails facing toward the inside of the cell.
Which of the following statements best describes how unsaturated fatty acids increase membrane fluidity?
They are hydrophobic. Which of the following statements best describes how unsaturated fatty acids increase membrane fluidity at lower temperatures? … The double bonds form kinks in the fatty acid tails, preventing adjacent lipids from packing tightly.
Which of the following best describes a characteristic of the cell membrane?
The correct answer is (C) A flexible lipid double layer. The cell membrane is often referred to as a “fluid mosaic,” a flexible structure…
Which of the following statements best explains how the cell membrane is selectively permeable?
Which of the following best describes selective permeability? The ability of the cell membrane to allow some things to pass through while preventing other things from passing through. … The relative concentration of solute inside and outside a cell can cause water molecules to move across the membrane.