Cell Homeostasis and Transport Flashcards
not rigid, fluid like with the movement of molecules. “proteins drift from place to place among the phospholipids; semipermeable barrier that allows only certain things to pass through
Fluid Mosaic Model
2 layers that create the main structure of the cell membrane
The phospholipid bilayer
primary component of the cell membrane
The phospholipid bilayer
allows small molecules (water, oxygen and carbon dioxide) to pass directly into and out of the cell.
The phospholipid bilayer
The membrane is permeable to small molecules
The phospholipid bilayer
This is a protein that is embedded throughout the entire phospholipid bilayer
A transport protein
What is another name for a transport protein
A channel or Carrier protein
What helps the cell to receive chemical information
A receptor cell
Allows substances to bind to the surface of the cell
A receptor cell
These help to identify cell type
Recognition proteins
These help with adhesion, cells stick to other cell to form tissues
recognition proteins
What are glycoproteins with carbohydrate branches
recognition proteins
What are the two categories of processes
passive and active
No energy is expended by the cell in what process
passive
What must exist for passive transport?
a concentration gradient