Chapter 5 Flashcards
A cell has a _____ and is ____ permeable
Phospholipid bilayer; selectively
____ model illustrates structure and function of plasma membrane
Fluid mosaic
A cell’s membrane is
Selectively permeable
A membrane allows
small, non-polar molecules
Molecules passing through the bilayer with no energy required
Passive transport
Non-polar and small polar molecules pass through by
Simple Diffusion
Molecules flow across a ____ from a high density do a small density
Concentration gradient
Diffusion of water across the membrane
Osmosis
Less solute
Hypotonic
More solute
Hypertonic
Balanced
Isotonic
Animal cells like to be___
Isotonic
Plant cells like to be ___
Hypotonic
Larger ions are able to pass through membrane with help from ___
Transport proteins
Passive transport with the help of transport proteins
Facilitated Diffusion