Flashcards
Biology 3.1.1 Gaseous exchange in boney fish
Cards in this deck (7)
- 1What is the buccal cavity?The mouth of the fish
- 2Why must fish have lots of gasous exchange?They are very active
- 3How are gills adapted so that more gaseous exchange can occur?They have thin layers so there is a short diffusion pathway
they haev a large surface area - 4What is countercurrent flow?Where two fluids flow in opposite directons
- 5How do fish use countercurrent flow?The blood and water flow in opposite directions
- 6What is the operculum?A boney flap that covers and protects the gills
- 7Explain the opercular pumpThe mouth opens and water moves into the buccal cavity. The mouth closes and the floor of the buccal cavity is raised, increasing the pressure and pushes water over the gills so that gaseous exchange can occur.
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- User has deleted their subject information Flashcards on Biology 3.1.1 Gaseous exchange in boney fish, created by Deleted user on 07/06/2019.
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- Deleted user · Jun 2019
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- Jun 7, 2019
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- Created by Sam Gunnell · Feb 14, 2019
- Copied by Sam Gunnell · Jun 7, 2019
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