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Gas Exchange
Methods of gas exchange
8
Biology
Undergraduate 1
10/11/2013

Additional Biology Flashcards

 


 

Cards

Term
Respiration(v)
Definition
Exchange of gases between organisms and the environment
Term
Organismic respiration(v)
Definition
Exchange between cells and envoronment
Term
Aerobic cellular respiration(v)
Definition
No oxygen, occurs within mitochondria
Term

Methods


 

Diffusion

Definition
  • Small aquatic organisms
  • High SA/V ratio
  • Moist bodied organisms
Term

Methods


 

Trachael Tubes

Definition
  • Insects and arthropods
  • Fluid filled sacs on tubes--tracheoles
  • Extend throughout body
  • Air enters through opening in exoskeleton called spiracles
Term

Methods


 

Gills

Definition
  • Large aquatic organsims
  • Dermal gills--starfish, ciliated, can retract
  • Gill slits--seasquirts and lancelets, internal, used for filter feeding
  • Fish gills--operculum, gill arches, gill, filaments, countercurrent exchange
Term

Methods


 

Lungs

Definition
  • Book lungs--spiders
  • Mantle--pulmonate snails
  • Lobefinned fishes--Lungfish(most primitive lung)
  • Amphibian Lung--salamanders(simple sac), frogs(ridges)
  • Reptile Lung--simple sac, some spongy
  • Bird Lung--most efficient, sacs separate in/out going air, parabronchi
  • Human Lung--rich in capilaries
Term
Pigments
Definition
  • Hemoglobin--Fe compound, red color
  • Hemocyanin--Cu compound, blue color
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