AP Biology Campbell 8th Edition Chapter 7 Study Guide
Due_____
Consider the Surface Area to Volume ratio of
multiple cells: Calculate the surface area-to-volume
ratio of each cell and write in the space provided.
Knowing that a cell uses diffusion to exchange a
variety of its reactants and products with the
environment, explain:
a. Why cells have limits on their size:
______
______
______
b. Why cells have limits on their shape:
______
Identify and label the following
components in the diagram:








Simple diffusion
Facilitated diffusion
Passive transport
Active transport
Hypertonic solution
Hypotonic solution
Channel protein
Carrier protein
______
______
What is the structural difference between a micelle and a phospholipid bilayer?
How does biochemistry affect the difference in structure?
How does the difference in structure affect each function?
Listed below is the distribution / movement of Na+ and K+ during the transmission of a nerve impulse. Put
the following in the correct order.
___1__ More Na+ outside the neuron; more K+ inside the neuron
______ Na+ gates open
______ Na+ gates close & K+ gates open
______ Na+ rushes into the neuron
______ K+ rushes out of the neuron
______ More K+ is outside the neuron; more Na+ is inside the neuron
______ Na+ is pumped out of the cell & K+ is pumped into the cell
Match the structure with the correct letter from the
adjacent diagram.
______ Neurotransmitter
______ Postsynaptic membrane
______ Presynaptic membrane
______ Receptor site (protein)
______ Synaptic cleft
______ Synaptic end bulb
______ Synaptic vesicle
Find 3 Technological Applications of Diffusion/Osmosis
Complete the following chart with at least 3 examples of technology that use the principles of diffusion and/or
osmosis
Name of
What it is used for How it uses diffusion/osmosis to accomplish the goal.
Technology
Dialysis Machine Renal
Medical procedure to remove wastes or toxins from the blood and
replacement
adjust fluid and electrolyte imbalances by utilizing rates at which
therapy:
substances diffuse through a semipermeable membrane: such as in
hemodialysis where blood is removed from an artery (as of a kidney
patient), purifying it by dialysis (removing waste products i.e. urea
& other solutes via diffusion and osmosis), adding vital substances,
and returning it to a vein.