Ch 7.3 Vocab Flashcards
Cell wall
Lie outside the cell membrane, provided supports, and protects the cell
Cell membrane
All cells are surrounded by a thin flexible barrier
Lipid bilayer
Double layered sheet of a cell membrane
Concentration
A solution’s mass of a solute in a given solution or mass/volume
Diffusion
Particles move from areas of higher concentration to areas of lower concentration
Equilibrium
Concentration of the solute is the same through a system
Osmosis
The diffusion of water through a selectively permeable membrane
Isotonic
Concentrations will be the same on both sides of the membrane
Hypertonic
High concentration solution compared to dilute solution
Hypotonia
Low concentrated solution compares to high concentrated
Facilitated
Help diffusion of glucose across the membrane
Active transport
Materials move the opposite direction- against concentration difference in cells
Endocytosis
Process of taking material into the cell by infoldings, pockets of a cell membrane
Phagocytosis
Extensions of cytoplasm surround a particle and package it within a food vacuole
Pinocytosis
Tiny pockets form a long the cell membrane fill with liquid, pinch off to form vacuoles within the cell