Plasma membrane Flashcards
Provides stability to the plasma membrane by limiting the movement of lipids.
The function of cholesterol
Act as receptors and some as enzymes.
They also provide shape and support to the plasma membrane because they are attached to the cytoskeleton
The function of the peripheral proteins
recognition sites for cell–cell interactions.
The function of the glycolipids
provide stability to the plasma membrane by forming hydrogen bonds with water.
The function of the glycoproteins
allows the polar and big molecules to pass across the membrane which are restricted by the phospholipid bilayer.
The function of the integral proteins
relate to location at the interface of the cell’s exterior and interior
What is the function of the plasma membrane?
molecules move from a region where they are more concentrated to an area where they are less concentrated
What is diffusion
An integral protein that spans the plasma membrane enables the passage of a particular solute across the membrane
What is facilitated diffusion
Of fat-soluble molecules directly through the phospholipid bilayer down their concentration gradient
What is a simple diffusion?
The taking in of matter by a living cell
What is endocytosis
The cell engulfs a large particle by forming projecting pseudopods (“false feed”) around it and enclosing it within a phagosome membrane sac. This is an example of what
Phagocytosis
The phagosome then combines with a lysosome, and its contents are digested. This is an exmaple of what
phagocytosis
Cell eating is another phrase for ________
phagocytosis
Infolding of the plasma membrane carries a drop of extracellular fluid containing solutes into the cell in a tiny membrane-bound vesicle. No receptors are used is nonspecific. This is an example of what
Pinocytosis
cell drinking is another prhase or word for _____
pinocytosis
First process of exocytosis
The second process of exocytosis
Third process of exocytosis
Fourth process of exocytosis
