Which of the following statement best describes the fluid mosaic model of plasma membrane?
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 is correct about the fluid mosaic model?
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.
What is the fluid mosaic model of the plasma membrane?
The fluid mosaic model describes the cell membrane as a tapestry of several types of molecules (phospholipids, cholesterols, and proteins) that are constantly moving. This movement helps the cell membrane maintain its role as a barrier between the inside and outside of the cell environments.
Which of the following is correct regarding plasma membrane?
Answer (c) It is fluid mosaic and selectively permeable.
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.
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.
Which of the following statement is not true about plasma membrane?
Carbohydrates are never found in plasma membrane is not true. … Plasma membrane is present in both plant and animal cells. Lipid is present as a bilayer and lipid component is made of phosphoglycerides (fluid mosaic model by Singer and Nicolson).
What is the plasma membrane mainly composed of?
Like all other cellular membranes, the plasma membrane consists of both lipids and proteins. The fundamental structure of the membrane is the phospholipid bilayer, which forms a stable barrier between two aqueous compartments.
Which of the following functions is performed by the carbohydrates of the plasma membrane?
Functions of Membrane Carbohydrates
Membrane carbohydrates perform two main functions: participate in cell recognition and adhesion, either cell-cell signaling or cell-pathogen interactions, and they have a structural role as a physical barrier.
Why is fluid mosaic model called 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.
What does Mosaic mean in fluid mosaic model?
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.
What is fluid mosaic model of plasma membrane class 11?
The fluid mosaic model was proposed by S.J. Singer and Garth L. Nicolson. This model explains the structure of the plasma membrane of animal cells as a mosaic of components such as phospholipids, proteins, cholesterol, and carbohydrates. These components give a fluid character to the membranes.
Which of the following statements about passive transport is correct?
which of the following statements about passive transport is correct? passive transport permits the solute to move in either direction, but the net movement of the population of solute occurs down the concentration gradient of the molecule. a selectively permeable membrane separates two solutions.
What is true regarding the plasma membrane?
The plasma membrane, also called the cell membrane, is the membrane found in all cells that separates the interior of the cell from the outside environment. … The plasma membrane consists of a lipid bilayer that is semipermeable. The plasma membrane regulates the transport of materials entering and exiting the cell.
Which of the following molecules are most abundant in the plasma membrane?
The most abundant membrane lipids are the phospholipids.