Play
The Cell Membrane and its Functions

The Cell Membrane and its Functions

Mastery: 0%
Click on any card to view the other side. To master this BrainRush, click Play.
Tags: science   ela   biology   rst.9-10.4   rst.11-12.4   high school   ngss   hs-ls1-1   ls1-1   cell membrane   phospholipid   bilayer   osmosis   transport  

Share This BrainRush:

Cell Membrane (Plasma Membrane)
back
The boundary that separates the cell from the environment and controls what enters and exits the cell. It is made of a phospholipid bilayer.
front
Phospholipid
back
A molecule composed of a phosphate group, glycerol, and two fatty acid chains. It is the major subunit of the cell membrane.
front
Fluid Mosaic Model
back
Describes the structure and function of the cell membrane as well as the ability of the cell membrane to adjust its own fluidity.
front
Selective Permeability
back
Describes the characteristic of the cell membrane to allow some, but not all, materials in and out of the cell.
front
Receptor
back
A protein that performs a specific action after coming into contact with a signaling molecule. Can be intracellular or held within the membrane.
front
Passive Transport
back
When molecules move across the cell membrane without the need for energy or help from a protein.
front
Diffusion
back
When molecules move from a highly concentrated region to a less concentrated region ("down a concentration gradient")
front
Concentration Gradient
back
The difference in concentrations of a solute between one area and another.
front
Osmosis
back
The passive movement of water molecules across the cell membrane in an effort to achieve isotonicity.
front
Isotonic
back
When the concentration of a solute inside of the cell is equal to that of the area surrounding the cell.
front
Hypertonic Solution
back
When the concentration of a solute inside of the cell is less than that of the area surrounding the cell.
front
Hypotonic Solution
back
When the concentration of a solute inside of the cell is greater than that of the area surrounding the cell.
front
Facilitated Diffusion
back
When structures inside the cell membrane called transport proteins are required to help molecules enter or exit the cell. This process does not require energy.
front
Active Transport
back
A process that requires energy and is used to move molecules against their concentration gradient (with the help of transport proteins).
front
Endocytosis
back
The process of taking materials from outside of the cell and moving them into the cell in vesicles.
front
Exocytosis
back
The process of taking materials stored in vesicles from inside of the cell and moving them out of the cell.
front
Phagocytosis
back
A version of endocytosis where the cell membrane engulfs very large particles (including bacteria).
front