jjj Flashcards
Pinocytosis.
Endocytosis of a fluid material; lipid.
Phagocytosis.
Endocytosis of a solid material; bacteria.
Concentration gradient
the difference in solute concentration between adjacent areas.
The difference in concentration on two sides of a membrane.
Peripheral temporary proteins.
Intact with only the hydrophilic heads of a phospholipid.
Transmembrane proteins
extend from one end of membrane to other
Integral proteins.
Permanent part of the membrane controls the movement of molecules across them.
Carrier Proteins
Integral proteins, transport chemicals across the membrane. UP and DOWN concentration gradient.
Channel Proteins
Create holes (hydrophilic) in the cell membrane, enabling transport of molecules DOWN a concentration gradient
Phospholipid bilayer.
2 layers of phospholipid that make up a cell membrane.
Bulk Transport.
Type of transport that uses vesicles to move large molecules or groups of molecules in or out of the cell.
Facilitated Diffusion.
Molecules that cross through a membrane via a specific transmembrane integral protein.