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10 Cards in this Set

  • Front
  • Back
Compare/contrast
4 types of respiratory organs
S (Skin)
G (Gills)
T (Teacheae)
L (lugs)
Define:
Hemoglobin
Co in Co2 out
4 chains of polypepics
contain an iron atom that makes blood red
Advantages of counter-current exchange
diffusion from?
gradient?
qVery, very effective
Remember: diffusion from high to low concentration
Counter-current ensures gradient exists continually
Exchange of gases can theoretically approach 100%
How many Americans die of smoking annually
Kills 430,000 Americans annually
annually
What smoking does to your lungs
Overwhelms, then destroys lung defense systems
Emphysema = hardening of alveoli
Eventually rupture, reducing lung capacity
Causes heart to work harder all the time
Respiratory Surface
Must accommodate what?typically ?
Always ?
If they dry out what will happen?
accommodate diffusion of CO2 out, O2 in
very thin
moist or wet
they cannot function
4 Types of Respiratory Organs
4 Types of Respiratory Organs
Skin
Gills
Tracheae
Lungs
Skin
For skin breathers, respiratory surface =
covering
Must live in
must maintain ?
Keep body
Keep body
Or
respiratory surface = body covering
Must live in moist or wet places
Must maintain high surface area to volume ratio
Keep body small
Keep body flat
Or both
how is Gas Transport carried out? and how?
Skin
Gases transported from skin to cells by blood or body fluids
Counter-Current Exchange Defined
“Exchange” = transfer of energy or materials
“Counter-current” = two fluids moving in opposite directions
Water one way
Blood, the other way