Osmosis

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Osmosis and Diffusion
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Gas Exchange
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Waste Removal
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Grab Bag
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Functional Units
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Isotonic, Hypertonic, Hypotonic
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Osmosis and Diffusion
Gas Exchange
Waste Removal
Grab Bag
Functional Units
Isotonic, Hypertonic, Hypotonic
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The diffusion of water.
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What is osmosis?
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The movement of molecules from high to low
concentration.
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What is diffusion?
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No energy is needed for this type of transport.
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What is passive?
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Osmosis and diffusion work because molecules
are in this.
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What is constant motion?
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This is the ability of the plasma membrane to
determine what can move into or out of the cell.
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What is selective permeability?
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Fish use these for gas exchange.
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What are gills?
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Mammals use this for gas exchange.
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What are lungs?
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This gas enters the lungs.
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What is oxygen?
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This gas exits the lungs.
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What is carbon dioxide?
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Plants use these openings for gas exchange.
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What are stomates?
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Humans rid the body of nitrogen wastes via this
body system.
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What is the urinary/excretory system?
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This is the most toxic form of nitrogen waste.
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What is ammonia?
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Birds eliminate this as the nitrogen waste.
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What is uric acid?
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This tube takes urine from the kidney to
the bladder.
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What is the ureter?
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Urine travels through this tube to exit the body.
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What is the urethra?
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This is the stretchy pouch that stores urine.
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What is the bladder?
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Birds and desert reptiles eliminate uric acid
because of this.
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What is it contains very little water?
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This is the hindrance to gas exchange on land?
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What is the tendency to dry out?
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Sodium and potassium regulation are controlled
by this.
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What is aldosterone?
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These structures open and close the stomates.
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What are guard cells?
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This is the functional unit of the kidney.
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What is the nephron?
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This is the functional unit of the
respiratory system.
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What is an alveoli?
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Name this picture.
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What is an alveoli?
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Gas exchange in lungs occurs between the alveoli
and this part of the circulatory system.
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What is a capillary?
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ADH acts on the nephron to regulate this.
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What is water?
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Water and solutes are same inside and
outside the cell.
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What is isotonic?
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The solution on the left is this to the one on
the right.
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What is hypertonic?
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The solution on the right is this to the one on
the left.
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What is hypotonic?
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This blood cell is normal, so it must be in this
type of solution.
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What is isotonic?
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These blood cells were in a hypertonic solution,
so they _____ water.
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What is lost?
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