Which statement best describes the fluid mosaic model?

Which statement describes the fluid mosaic model quizlet?

Which statement describes the fluid mosaic model? a phospholipid bilayer with various molecules embedded within and floating between the layers. Facilitated diffusion is a protein‑facilitated movement of solutes across a membrane from an area of higher concentration to an area of lower concentration.

What is true about fluid mosaic model?

According to fluid mosaic model of Singer and Nicolson, the plasma membrane has a continuous lipid bilayer having integral protein molecules embedded at places.

What does model mean in fluid mosaic model?

A model that describes the structure of cell membranes. In this model, a flexible layer made of lipid molecules is interspersed with large protein molecules that act as channels through which other molecules enter and leave the cell.

Who gave 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).

Which of the following statements best describes the fluid mosaic model of the 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.

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What is the function of the sodium potassium pump in nerve cells?

It acts to transport sodium and potassium ions across the cell membrane in a ratio of 3 sodium ions out for every 2 potassium ions brought in. In the process, the pump helps to stabilize membrane potential, and thus is essential in creating the conditions necessary for the firing of action potentials.

Which of the following best describes facilitated diffusion?

Facilitated diffusion is a protein-facilitated movement of solutes across a membrane from an area of higher concentration to an area of lower concentration.

What happens to membrane permeability below 0?

Generally, increasing the temperature increases membrane permeability. At temperatures below 0 oC the phospholipids in the membrane don’t have much energy and so they can’t move much, which means that they’re closely packed together and the membrane is rigid.

What part of the cell membrane acts like a fluid and what makes it like a mosaic?

What part of the cell membrane acts like a fluid? And what makes it a mosaic? It is sometimes referred to as a fluid mosaic because it resembles an artistic mosaic due to its many different molecules that it contains. The part that acts like a fluid is the lipid bilayer.