Fluid Mosaic Model

Front

What is the Fluid Mosaic Model?

Back

is a scientific model that describes the structure of cell membranes. It depicts the membrane as a mosaic of components such as phospholipids, cholesterol, proteins, and carbohydrates, which gives the membrane a fluid character.

Front

what is the function of the plasma membrane

Back

is to regulate the passage of substances into and out of the cell. It maintains the cell's internal environment, distinct from its surroundings. It also plays a role in cell signaling, cell recognition, and cell adhesion.

Front

what are the main components of membranes?

Back

phospholipids, proteins, and carbohydrates.

Front

what are the properties of the phospholipid bilayer?

Back

amphipathic nature,

selective permeability,

fluidity,

self-sealing

Front

Name the type of proteins found in the plasma membrane and compare their functions

Back

integral proteins, transport proteins, receptor proteins, enzymes, structural proteins, peripheral proteins, cell signaling, cell adhesion, enzymatic activity.

Front

what is passive transport?

Back

is the movement of substances across a cell membrane without requiring the cell to expend energy.

Front

what is simple diffusion?

Back

is a type of passive transport where small, nonpolar molecules move across the cell membrane directly through the phospholipid bilayer, without the assistance of any membrane proteins.

(like a small uncharged ball easily rolling through an open doorway)

Front

what proteins allow membrane diffusion?

Back

channel proteins and carrier proteins

Front

what is facilitated diffusion?

Back

a type of passive transport that moves molecules across a cell membrane from an area of high concentration to an area of low concentration