Gas Exchange in Bony Fish: OCR AS Level

  • Created by: Aleena
  • Created on: 26-10-18 13:35
The 2 groups of fish?
Teleosts (Bony Fish-skeleton made of bone) and Elasmobranchs (Fish-skeleton made of cartilage)
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What is the gas exchange organ of fish?
Gills
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How does the Gills increase their surface area?
the gills are divided into gill filaments-then each gill filament is divided into lots gill lamellae(or gill plates)-lots of oxygen can be absorbed all at once
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Adaptions of lamellae for efficient gas exchange?
Well supplied with blood vessels-maintains steep concentration gradients & are v.thin-short diffusion pathway of oxygen from water to the blood . As fish live in water-gills are always moist,to dissolve gases so they can diffuse
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heloo
djb
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Other cards in this set

Card 2

Front

What is the gas exchange organ of fish?

Back

Gills

Card 3

Front

How does the Gills increase their surface area?

Back

Preview of the front of card 3

Card 4

Front

Adaptions of lamellae for efficient gas exchange?

Back

Preview of the front of card 4

Card 5

Front

heloo

Back

Preview of the front of card 5

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