Question

why is the cell/plasma membrane referred to as a fluid mosaic?
label the parts of the cell membrane:
teachers initials:
cellular transport - two types of transport
station two: passive transport (diffusion)
instruction: read the below information provided and answer the following questions at the end of the text.
the word concentration refers to how much stuff or mass is found in each space or volume. an espresso coffee has more coffee particles than a regular cup of coffee; therefore, the espresso is more concentrated. you can also say that a cup of coffee with three sugar cubes has a higher concentration of sugar then a second cup of coffee that has only one sugar cube added.
when the sugar cube was first added to the coffee, the sugar was concentrated or tightly packed into a sugar cube. however, the water in the coffee gradually dissolves the sugar cube causing the sugar cube to randomly spread out in the solution. the dissolved sugar molecules moved away from the cube where it was highly concentrated into the coffee liquid where it was less concentrated. this random movement of particles from an area of high concentration to an area of lesser concentration is called diffusion. the uneven distribution of sugar particles is called a concentration gradient. normal diffusion goes with the gradient moving particles from high to low concentrations. diffusion stops when the particles are spread out evenly. the particles are still in constant motion, but because there is no concentration gradient, the solution has reached equilibrium.
diffusion happens through the cell/plasma membrane of the cell even though the membrane is selectively permeable. this means that the cell/plasma membrane is able to select what it permits or allows through

Explanation:

The cell/plasma membrane is called a fluid mosaic because it is composed of a phospholipid bilayer that is fluid - the lipids and proteins can move laterally. It is a mosaic due to the variety of embedded proteins, cholesterol, and carbohydrates. For passive transport (diffusion), it is the movement of particles from an area of high concentration to low concentration. The cell membrane's selective permeability allows for diffusion to occur while controlling what enters and exits the cell.

Answer:

The cell/plasma membrane is referred to as a fluid mosaic because the phospholipid bilayer is fluid (lipids and proteins can move laterally) and a mosaic (due to diverse embedded components like proteins, cholesterol, and carbohydrates). Passive transport (diffusion) is the movement of particles from high to low concentration through the selectively - permeable cell membrane.